[parser] Support declaring parameters

This allows `var int a` in primary constructors when the declaring constructors feature is enabled.

Part of https://github.com/dart-lang/sdk/issues/61699

Change-Id: I486ad8aa3ddbe09451455b024b3aa9cfbaa9a5e9
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/456340
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>

pkg/_fe_analyzer_shared/lib/src/metadata/parser.dart

@@ -1019,6 +1019,7 @@ class AnnotationsListener extends StackListener {
 
   @override
   void endFormalParameter(
+    Token? varOrFinal,
     Token? thisKeyword,
     Token? superKeyword,
     Token? periodAfterThisOrSuper,

pkg/_fe_analyzer_shared/lib/src/parser/forwarding_listener.dart

@@ -1111,6 +1111,7 @@ class ForwardingListener implements Listener {
 
   @override
   void endFormalParameter(
+    Token? varOrFinal,
     Token? thisKeyword,
     Token? superKeyword,
     Token? periodAfterThisOrSuper,
@@ -1121,6 +1122,7 @@ class ForwardingListener implements Listener {
     MemberKind memberKind,
   ) {
     listener?.endFormalParameter(
+      varOrFinal,
       thisKeyword,
       superKeyword,
       periodAfterThisOrSuper,

pkg/_fe_analyzer_shared/lib/src/parser/listener.dart

@@ -569,6 +569,7 @@ abstract class Listener implements UnescapeErrorListener {
   ) {}
 
   void endFormalParameter(
+    Token? varOrFinal,
     Token? thisKeyword,
     Token? superKeyword,
     Token? periodAfterThisOrSuper,

pkg/_fe_analyzer_shared/lib/src/parser/parser_impl.dart

@@ -325,6 +325,9 @@ class Parser {
   /// `true` if the 'enhanced-parts' feature is enabled.
   final bool _isEnhancedPartsFeatureEnabled;
 
+  /// `true` if the 'declaring-constructors' feature is enabled.
+  final bool _isDeclaringConstructorsFeatureEnabled;
+
   /// Indicates whether the last pattern parsed is allowed inside unary
   /// patterns.  This is set by [parsePrimaryPattern] and [parsePattern].
   ///
@@ -347,7 +350,9 @@ class Parser {
          ExperimentalFlag.patterns,
        ),
        _isEnhancedPartsFeatureEnabled = experimentalFeatures
-           .isExperimentEnabled(ExperimentalFlag.enhancedParts);
+           .isExperimentEnabled(ExperimentalFlag.enhancedParts),
+       _isDeclaringConstructorsFeatureEnabled = experimentalFeatures
+           .isExperimentEnabled(ExperimentalFlag.declaringConstructors);
 
   /// Executes [callback]; however if `this` is the `TestParser` (from
   /// `pkg/front_end/test/parser_test_parser.dart`) then no output is printed
@@ -2220,10 +2225,26 @@ class Parser {
       token = next.endGroup!;
       next = token.next!;
     }
-    if (typeInfo != noType &&
-        varFinalOrConst != null &&
-        varFinalOrConst.isA(Keyword.VAR)) {
-      reportRecoverableError(varFinalOrConst, codes.codeTypeAfterVar);
+    Token? varOrFinal;
+    if (varFinalOrConst != null) {
+      if (varFinalOrConst.isA(Keyword.VAR)) {
+        varOrFinal = varFinalOrConst;
+        if (typeInfo != noType) {
+          if (memberKind != MemberKind.PrimaryConstructor) {
+            reportRecoverableError(varFinalOrConst, codes.codeTypeAfterVar);
+          } else {
+            if (!_isDeclaringConstructorsFeatureEnabled) {
+              reportExperimentNotEnabled(
+                ExperimentalFlag.declaringConstructors,
+                varOrFinal,
+                varOrFinal,
+              );
+            }
+          }
+        }
+      } else if (varFinalOrConst.isA(Keyword.FINAL)) {
+        varOrFinal = varFinalOrConst;
+      }
     }
 
     Token? endInlineFunctionType;
@@ -2312,6 +2333,7 @@ class Parser {
       listener.handleFormalParameterWithoutValue(next);
     }
     listener.endFormalParameter(
+      varOrFinal,
       thisKeyword,
       superKeyword,
       periodAfterThisOrSuper,

pkg/analyzer/lib/src/fasta/ast_builder.dart

@@ -1974,6 +1974,7 @@ class AstBuilder extends StackListener {
 
   @override
   void endFormalParameter(
+    Token? varOrFinal,
     Token? thisKeyword,
     Token? superKeyword,
     Token? periodAfterThisOrSuper,

pkg/analyzer/test/generated/declaring_constructors_parser_test.dart

@@ -0,0 +1,303 @@
+// Copyright (c) 2025, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'package:analyzer/src/dart/scanner/scanner.dart';
+import 'package:test_reflective_loader/test_reflective_loader.dart';
+
+import '../src/dart/resolution/context_collection_resolution.dart';
+
+main() {
+  defineReflectiveSuite(() {
+    defineReflectiveTests(DeclaringConstructorsParserTest);
+  });
+}
+
+@reflectiveTest
+class DeclaringConstructorsParserTest extends PubPackageResolutionTest {
+  test_constWithoutPrimaryConstructor_class() async {
+    await assertErrorsInCode(
+      r'''
+class const C {}
+''',
+      [error(ParserErrorCode.constWithoutPrimaryConstructor, 6, 5)],
+    );
+  }
+
+  test_constWithoutPrimaryConstructor_enum() async {
+    await assertErrorsInCode(
+      r'''
+enum const E {
+  a
+}
+''',
+      [error(ParserErrorCode.constWithoutPrimaryConstructor, 5, 5)],
+    );
+  }
+
+  test_constWithoutPrimaryConstructor_extensionType() async {
+    await assertErrorsInCode(
+      r'''
+extension type const E {}
+''',
+      [error(ParserErrorCode.missingPrimaryConstructor, 21, 1)],
+    );
+  }
+
+  test_constWithoutPrimaryConstructor_namedMixinApplication() async {
+    await assertErrorsInCode(
+      r'''
+mixin M {}
+class const C = Object with M;
+''',
+      [error(ParserErrorCode.constWithoutPrimaryConstructor, 17, 5)],
+    );
+  }
+
+  test_declaringParameter_class_finalType() async {
+    await assertNoErrorsInCode(r'''
+class C(final int a) {}
+''');
+  }
+
+  test_declaringParameter_class_varType() async {
+    await assertNoErrorsInCode(r'''
+class C(var int a) {}
+''');
+  }
+
+  test_declaringParameter_enum_finalType() async {
+    await assertNoErrorsInCode(r'''
+enum E(final int a) {
+  a
+}
+''');
+  }
+
+  test_declaringParameter_enum_varType() async {
+    await assertNoErrorsInCode(r'''
+enum C(var int a) {
+  a
+}
+''');
+  }
+
+  test_declaringParameter_extensionType_final() async {
+    await assertErrorsInCode(
+      r'''
+extension type ET(final a) {}
+''',
+      [
+        error(ParserErrorCode.expectedRepresentationType, 18, 5),
+        // TODO(scheglov): Stop reporting this error.
+        error(ParserErrorCode.representationFieldModifier, 18, 5),
+      ],
+    );
+  }
+
+  test_declaringParameter_extensionType_finalType() async {
+    await assertErrorsInCode(
+      r'''
+extension type ET(final int a) {}
+''',
+      // TODO(scheglov): Stop reporting this error.
+      [error(ParserErrorCode.representationFieldModifier, 18, 5)],
+    );
+  }
+
+  test_declaringParameter_extensionType_var() async {
+    await assertErrorsInCode(
+      r'''
+extension type ET(var a) {}
+''',
+      [
+        error(ParserErrorCode.expectedRepresentationType, 18, 3),
+        // TODO(scheglov): Stop reporting this error.
+        error(ParserErrorCode.representationFieldModifier, 18, 3),
+      ],
+    );
+  }
+
+  test_declaringParameter_extensionType_varType() async {
+    await assertErrorsInCode(
+      r'''
+extension type ET(var int a) {}
+''',
+      [error(ParserErrorCode.representationFieldModifier, 18, 3)],
+    );
+  }
+
+  test_declaringParameter_extensionType_varType_preFeature() async {
+    await assertErrorsInCode(
+      '''
+// @dart=3.9
+extension type ET(var int a) {}
+''',
+      [
+        error(ParserErrorCode.experimentNotEnabledOffByDefault, 31, 3),
+        // TOD(scheglov): Stop reporting this error.
+        error(ParserErrorCode.representationFieldModifier, 31, 3),
+      ],
+    );
+  }
+
+  test_primaryConstructor_class_const() async {
+    await assertNoErrorsInCode(r'''
+class const C() {}
+''');
+  }
+
+  test_primaryConstructor_class_const_named() async {
+    await assertNoErrorsInCode(r'''
+class const C.named() {}
+''');
+  }
+
+  test_primaryConstructor_class_const_typeParameters() async {
+    await assertNoErrorsInCode(r'''
+class const C<T>() {}
+''');
+  }
+
+  test_primaryConstructor_class_const_typeParameters_named() async {
+    await assertNoErrorsInCode(r'''
+class const C<T>.named() {}
+''');
+  }
+
+  test_primaryConstructor_class_nonconst() async {
+    await assertNoErrorsInCode(r'''
+class C() {}
+''');
+  }
+
+  test_primaryConstructor_class_nonconst_named() async {
+    await assertNoErrorsInCode(r'''
+class C.named() {}
+''');
+  }
+
+  test_primaryConstructor_class_nonconst_typeParameters() async {
+    await assertNoErrorsInCode(r'''
+class C<T>() {}
+''');
+  }
+
+  test_primaryConstructor_class_nonconst_typeParameters_named() async {
+    await assertNoErrorsInCode(r'''
+class C<T>.named() {}
+''');
+  }
+
+  test_primaryConstructor_enum_const() async {
+    await assertNoErrorsInCode(r'''
+enum const E() {
+  a
+}
+''');
+  }
+
+  test_primaryConstructor_enum_const_named() async {
+    await assertNoErrorsInCode(r'''
+enum const E.named() {
+  a
+}
+''');
+  }
+
+  test_primaryConstructor_enum_const_typeParameters() async {
+    await assertNoErrorsInCode(r'''
+enum const E<T>() {
+  a
+}
+''');
+  }
+
+  test_primaryConstructor_enum_const_typeParameters_named() async {
+    await assertNoErrorsInCode(r'''
+enum const E<T>.named() {
+  a
+}
+''');
+  }
+
+  test_primaryConstructor_enum_nonconst() async {
+    await assertNoErrorsInCode(r'''
+enum E() {
+  a
+}
+''');
+  }
+
+  test_primaryConstructor_enum_nonconst_named() async {
+    await assertNoErrorsInCode(r'''
+enum E.named() {
+  a
+}
+''');
+  }
+
+  test_primaryConstructor_enum_nonconst_typeParameters() async {
+    await assertNoErrorsInCode(r'''
+enum E<T>() {
+  a
+}
+''');
+  }
+
+  test_primaryConstructor_enum_nonconst_typeParameters_named() async {
+    await assertNoErrorsInCode(r'''
+enum E<T>.named() {
+  a
+}
+''');
+  }
+
+  test_primaryConstructor_extensionType_const() async {
+    await assertNoErrorsInCode(r'''
+extension type const E(int i) {}
+''');
+  }
+
+  test_primaryConstructor_extensionType_const_named() async {
+    await assertNoErrorsInCode(r'''
+extension type const E.named(int i) {}
+''');
+  }
+
+  test_primaryConstructor_extensionType_const_typeParameters() async {
+    await assertNoErrorsInCode(r'''
+extension type const E<T>(int i) {}
+''');
+  }
+
+  test_primaryConstructor_extensionType_const_typeParameters_named() async {
+    await assertNoErrorsInCode(r'''
+extension type const E<T>.named(int i) {}
+''');
+  }
+
+  test_primaryConstructor_extensionType_nonconst() async {
+    await assertNoErrorsInCode(r'''
+extension type E(int i) {}
+''');
+  }
+
+  test_primaryConstructor_extensionType_nonconst_named() async {
+    await assertNoErrorsInCode(r'''
+extension type E.named(int i) {}
+''');
+  }
+
+  test_primaryConstructor_extensionType_nonconst_typeParameters() async {
+    await assertNoErrorsInCode(r'''
+extension type E<T>(int i) {}
+''');
+  }
+
+  test_primaryConstructor_extensionType_nonconst_typeParameters_named() async {
+    await assertNoErrorsInCode(r'''
+extension type E<T>.named(int i) {}
+''');
+  }
+}

pkg/analyzer/test/generated/parser_fasta_listener.dart

@@ -1101,6 +1101,7 @@ class ForwardingTestListener extends ForwardingListener {
 
   @override
   void endFormalParameter(
+    Token? varOrFinal,
     Token? thisKeyword,
     Token? superKeyword,
     Token? periodAfterThisOrSuper,
@@ -1112,6 +1113,7 @@ class ForwardingTestListener extends ForwardingListener {
   ) {
     end('FormalParameter');
     super.endFormalParameter(
+      varOrFinal,
       thisKeyword,
       superKeyword,
       periodAfterThisOrSuper,

pkg/analyzer/test/generated/test_all.dart

@@ -8,6 +8,8 @@ import 'all_the_rest_test.dart' as all_the_rest;
 import 'class_member_parser_test.dart' as class_member_parser;
 import 'collection_literal_parser_test.dart' as collection_literal_parser;
 import 'complex_parser_test.dart' as complex_parser;
+import 'declaring_constructors_parser_test.dart'
+    as declaring_constructors_parser;
 import 'error_parser_test.dart' as error_parser;
 import 'expression_parser_test.dart' as expression_parser;
 import 'extension_methods_parser_test.dart' as extension_methods_parser;
@@ -47,6 +49,7 @@ main() {
     class_member_parser.main();
     collection_literal_parser.main();
     complex_parser.main();
+    declaring_constructors_parser.main();
     error_parser.main();
     expression_parser.main();
     extension_methods_parser.main();

pkg/analyzer/tool/summary/mini_ast.dart

@@ -346,6 +346,7 @@ class MiniAstBuilder extends StackListener {
 
   @override
   void endFormalParameter(
+    Token? varOrFinal,
     Token? thisKeyword,
     Token? superKeyword,
     Token? periodAfterThisOrSuper,

pkg/front_end/lib/src/kernel/body_builder.dart

@@ -5344,6 +5344,7 @@ class BodyBuilderImpl extends StackListenerImpl
 
   @override
   void endFormalParameter(
+    Token? varOrFinal,
     Token? thisKeyword,
     Token? superKeyword,
     Token? periodAfterThisOrSuper,

pkg/front_end/lib/src/source/outline_builder.dart

@@ -2891,6 +2891,7 @@ class OutlineBuilder extends StackListenerImpl {
 
   @override
   void endFormalParameter(
+    Token? varOrFinal,
     Token? thisKeyword,
     Token? superKeyword,
     Token? periodAfterThisOrSuper,

pkg/front_end/lib/src/util/parser_ast_helper.dart

@@ -921,6 +921,7 @@ abstract class AbstractParserAstListener implements Listener {
 
   @override
   void endFormalParameter(
+    Token? varOrFinal,
     Token? thisKeyword,
     Token? superKeyword,
     Token? periodAfterThisOrSuper,
@@ -932,6 +933,7 @@ abstract class AbstractParserAstListener implements Listener {
   ) {
     FormalParameterEnd data = new FormalParameterEnd(
       ParserAstType.END,
+      varOrFinal: varOrFinal,
       thisKeyword: thisKeyword,
       superKeyword: superKeyword,
       periodAfterThisOrSuper: periodAfterThisOrSuper,
@@ -5666,6 +5668,7 @@ class FormalParameterBegin extends ParserAstNode {
 }
 
 class FormalParameterEnd extends ParserAstNode {
+  final Token? varOrFinal;
   final Token? thisKeyword;
   final Token? superKeyword;
   final Token? periodAfterThisOrSuper;
@@ -5677,6 +5680,7 @@ class FormalParameterEnd extends ParserAstNode {
 
   FormalParameterEnd(
     ParserAstType type, {
+    this.varOrFinal,
     this.thisKeyword,
     this.superKeyword,
     this.periodAfterThisOrSuper,
@@ -5689,6 +5693,7 @@ class FormalParameterEnd extends ParserAstNode {
 
   @override
   Map<String, Object?> get deprecatedArguments => {
+    "varOrFinal": varOrFinal,
     "thisKeyword": thisKeyword,
     "superKeyword": superKeyword,
     "periodAfterThisOrSuper": periodAfterThisOrSuper,

pkg/front_end/parser_testcases/also-nnbd/use_late_in_non_nnbd.dart.expect

@@ -137,7 +137,7 @@ beginCompilationUnit(int)
           handleType(List, null)
           handleIdentifier(args, formalParameterDeclaration)
           handleFormalParameterWithoutValue())
-        endFormalParameter(null, null, null, args, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, args, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
       endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(null, null)
       beginBlockFunctionBody({)

pkg/front_end/parser_testcases/also-nnbd/use_late_in_non_nnbd.dart.intertwined.expect

@@ -165,7 +165,7 @@ parseUnit(int)
                 ensureIdentifier(>, formalParameterDeclaration)
                   listener: handleIdentifier(args, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue())
-                listener: endFormalParameter(null, null, null, args, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, args, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
         parseAsyncModifierOpt())
           listener: handleAsyncModifier(null, null)

pkg/front_end/parser_testcases/also-nnbd/use_required_in_non_nnbd.dart.expect

@@ -26,7 +26,7 @@ beginCompilationUnit(void)
             handleType(int, null)
             handleIdentifier(x1, formalParameterDeclaration)
             handleFormalParameterWithoutValue(})
-          endFormalParameter(null, null, null, x1, null, null, FormalParameterKind.requiredNamed, MemberKind.TopLevelMethod)
+          endFormalParameter(null, null, null, null, x1, null, null, FormalParameterKind.requiredNamed, MemberKind.TopLevelMethod)
         endOptionalFormalParameters(1, {, }, MemberKind.TopLevelMethod)
       endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(null, null)
@@ -59,7 +59,7 @@ beginCompilationUnit(void)
             handleNoType(required)
             handleIdentifier(x2, formalParameterDeclaration)
             handleFormalParameterWithoutValue(})
-          endFormalParameter(null, null, null, x2, null, null, FormalParameterKind.requiredNamed, MemberKind.TopLevelMethod)
+          endFormalParameter(null, null, null, null, x2, null, null, FormalParameterKind.requiredNamed, MemberKind.TopLevelMethod)
         endOptionalFormalParameters(1, {, }, MemberKind.TopLevelMethod)
       endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(null, null)
@@ -94,7 +94,7 @@ beginCompilationUnit(void)
             handleNoType(required)
             handleIdentifier(x3, formalParameterDeclaration)
             handleFormalParameterWithoutValue(})
-          endFormalParameter(null, null, null, x3, null, null, FormalParameterKind.requiredNamed, MemberKind.TopLevelMethod)
+          endFormalParameter(null, null, null, null, x3, null, null, FormalParameterKind.requiredNamed, MemberKind.TopLevelMethod)
         endOptionalFormalParameters(1, {, }, MemberKind.TopLevelMethod)
       endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(null, null)
@@ -142,7 +142,7 @@ beginCompilationUnit(void)
                   handleType(int, null)
                   handleIdentifier(x4, formalParameterDeclaration)
                   handleFormalParameterWithoutValue(})
-                endFormalParameter(null, null, null, x4, null, null, FormalParameterKind.requiredNamed, MemberKind.NonStaticMethod)
+                endFormalParameter(null, null, null, null, x4, null, null, FormalParameterKind.requiredNamed, MemberKind.NonStaticMethod)
               endOptionalFormalParameters(1, {, }, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()

pkg/front_end/parser_testcases/also-nnbd/use_required_in_non_nnbd.dart.intertwined.expect

@@ -32,7 +32,7 @@ parseUnit(void)
                   ensureIdentifier(int, formalParameterDeclaration)
                     listener: handleIdentifier(x1, formalParameterDeclaration)
                   listener: handleFormalParameterWithoutValue(})
-                  listener: endFormalParameter(null, null, null, x1, null, null, FormalParameterKind.requiredNamed, MemberKind.TopLevelMethod)
+                  listener: endFormalParameter(null, null, null, null, x1, null, null, FormalParameterKind.requiredNamed, MemberKind.TopLevelMethod)
                 listener: endOptionalFormalParameters(1, {, }, MemberKind.TopLevelMethod)
               ensureCloseParen(}, ()
               listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
@@ -102,7 +102,7 @@ parseUnit(void)
                   ensureIdentifier(required, formalParameterDeclaration)
                     listener: handleIdentifier(x2, formalParameterDeclaration)
                   listener: handleFormalParameterWithoutValue(})
-                  listener: endFormalParameter(null, null, null, x2, null, null, FormalParameterKind.requiredNamed, MemberKind.TopLevelMethod)
+                  listener: endFormalParameter(null, null, null, null, x2, null, null, FormalParameterKind.requiredNamed, MemberKind.TopLevelMethod)
                 listener: endOptionalFormalParameters(1, {, }, MemberKind.TopLevelMethod)
               ensureCloseParen(}, ()
               listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
@@ -176,7 +176,7 @@ parseUnit(void)
                   ensureIdentifier(required, formalParameterDeclaration)
                     listener: handleIdentifier(x3, formalParameterDeclaration)
                   listener: handleFormalParameterWithoutValue(})
-                  listener: endFormalParameter(null, null, null, x3, null, null, FormalParameterKind.requiredNamed, MemberKind.TopLevelMethod)
+                  listener: endFormalParameter(null, null, null, null, x3, null, null, FormalParameterKind.requiredNamed, MemberKind.TopLevelMethod)
                 listener: endOptionalFormalParameters(1, {, }, MemberKind.TopLevelMethod)
               ensureCloseParen(}, ()
               listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
@@ -274,7 +274,7 @@ parseUnit(void)
                           ensureIdentifier(int, formalParameterDeclaration)
                             listener: handleIdentifier(x4, formalParameterDeclaration)
                           listener: handleFormalParameterWithoutValue(})
-                          listener: endFormalParameter(null, null, null, x4, null, null, FormalParameterKind.requiredNamed, MemberKind.NonStaticMethod)
+                          listener: endFormalParameter(null, null, null, null, x4, null, null, FormalParameterKind.requiredNamed, MemberKind.NonStaticMethod)
                         listener: endOptionalFormalParameters(1, {, }, MemberKind.NonStaticMethod)
                       ensureCloseParen(}, ()
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)

pkg/front_end/parser_testcases/augmentation/augment_super.dart.expect

@@ -116,7 +116,7 @@ beginCompilationUnit(augment)
           handleType(List, null)
           handleIdentifier(value, formalParameterDeclaration)
           handleFormalParameterWithoutValue())
-        endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
       endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(null, null)
       beginBlockFunctionBody({)
@@ -288,7 +288,7 @@ beginCompilationUnit(augment)
                 handleType(int, null)
                 handleIdentifier(value, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)

pkg/front_end/parser_testcases/augmentation/augment_super.dart.intertwined.expect

@@ -219,7 +219,7 @@ parseUnit(augment)
                 ensureIdentifier(>, formalParameterDeclaration)
                   listener: handleIdentifier(value, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue())
-                listener: endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
         parseAsyncModifierOpt())
           listener: handleAsyncModifier(null, null)
@@ -663,7 +663,7 @@ parseUnit(augment)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(value, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()

pkg/front_end/parser_testcases/augmentation/member_declarations.dart.expect

@@ -86,7 +86,7 @@ beginCompilationUnit(class)
                 handleNoType(()
                 handleIdentifier(value, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -108,7 +108,7 @@ beginCompilationUnit(class)
                 handleNoType(()
                 handleIdentifier(value, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -261,7 +261,7 @@ beginCompilationUnit(class)
                 handleNoType(()
                 handleIdentifier(value, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.StaticMethod)
+              endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.StaticMethod)
             endFormalParameters(1, (, ), MemberKind.StaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -283,7 +283,7 @@ beginCompilationUnit(class)
                 handleNoType(()
                 handleIdentifier(value, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.StaticMethod)
+              endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.StaticMethod)
             endFormalParameters(1, (, ), MemberKind.StaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -449,7 +449,7 @@ beginCompilationUnit(class)
                 handleNoType(()
                 handleIdentifier(value, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -471,7 +471,7 @@ beginCompilationUnit(class)
                 handleNoType(()
                 handleIdentifier(value, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -624,7 +624,7 @@ beginCompilationUnit(class)
                 handleNoType(()
                 handleIdentifier(value, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.StaticMethod)
+              endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.StaticMethod)
             endFormalParameters(1, (, ), MemberKind.StaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -646,7 +646,7 @@ beginCompilationUnit(class)
                 handleNoType(()
                 handleIdentifier(value, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.StaticMethod)
+              endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.StaticMethod)
             endFormalParameters(1, (, ), MemberKind.StaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)

pkg/front_end/parser_testcases/augmentation/member_declarations.dart.intertwined.expect

@@ -188,7 +188,7 @@ parseUnit(class)
                         ensureIdentifier((, formalParameterDeclaration)
                           listener: handleIdentifier(value, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -229,7 +229,7 @@ parseUnit(class)
                         ensureIdentifier((, formalParameterDeclaration)
                           listener: handleIdentifier(value, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -534,7 +534,7 @@ parseUnit(class)
                         ensureIdentifier((, formalParameterDeclaration)
                           listener: handleIdentifier(value, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.StaticMethod)
+                        listener: endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.StaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.StaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -574,7 +574,7 @@ parseUnit(class)
                         ensureIdentifier((, formalParameterDeclaration)
                           listener: handleIdentifier(value, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.StaticMethod)
+                        listener: endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.StaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.StaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -905,7 +905,7 @@ parseUnit(class)
                       ensureIdentifier((, formalParameterDeclaration)
                         listener: handleIdentifier(value, formalParameterDeclaration)
                       listener: handleFormalParameterWithoutValue())
-                      listener: endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                      listener: endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                     listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
               parseInitializersOpt())
                 listener: handleNoInitializers()
@@ -946,7 +946,7 @@ parseUnit(class)
                       ensureIdentifier((, formalParameterDeclaration)
                         listener: handleIdentifier(value, formalParameterDeclaration)
                       listener: handleFormalParameterWithoutValue())
-                      listener: endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                      listener: endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                     listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
               parseInitializersOpt())
                 listener: handleNoInitializers()
@@ -1251,7 +1251,7 @@ parseUnit(class)
                       ensureIdentifier((, formalParameterDeclaration)
                         listener: handleIdentifier(value, formalParameterDeclaration)
                       listener: handleFormalParameterWithoutValue())
-                      listener: endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.StaticMethod)
+                      listener: endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.StaticMethod)
                     listener: endFormalParameters(1, (, ), MemberKind.StaticMethod)
               parseInitializersOpt())
                 listener: handleNoInitializers()
@@ -1291,7 +1291,7 @@ parseUnit(class)
                       ensureIdentifier((, formalParameterDeclaration)
                         listener: handleIdentifier(value, formalParameterDeclaration)
                       listener: handleFormalParameterWithoutValue())
-                      listener: endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.StaticMethod)
+                      listener: endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.StaticMethod)
                     listener: endFormalParameters(1, (, ), MemberKind.StaticMethod)
               parseInitializersOpt())
                 listener: handleNoInitializers()

pkg/front_end/parser_testcases/augmentation/member_errors.dart.expect

@@ -457,7 +457,7 @@ beginCompilationUnit(class)
                 handleNoType(()
                 handleIdentifier(value, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -480,7 +480,7 @@ beginCompilationUnit(class)
                 handleNoType(()
                 handleIdentifier(value, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -502,7 +502,7 @@ beginCompilationUnit(class)
                 handleNoType(()
                 handleIdentifier(value, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -524,7 +524,7 @@ beginCompilationUnit(class)
                 handleNoType(()
                 handleIdentifier(value, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -547,7 +547,7 @@ beginCompilationUnit(class)
                 handleNoType(()
                 handleIdentifier(value, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -569,7 +569,7 @@ beginCompilationUnit(class)
                 handleNoType(()
                 handleIdentifier(value, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -941,7 +941,7 @@ beginCompilationUnit(class)
                 handleNoType(()
                 handleIdentifier(value, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.StaticMethod)
+              endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.StaticMethod)
             endFormalParameters(1, (, ), MemberKind.StaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -964,7 +964,7 @@ beginCompilationUnit(class)
                 handleNoType(()
                 handleIdentifier(value, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.StaticMethod)
+              endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.StaticMethod)
             endFormalParameters(1, (, ), MemberKind.StaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -987,7 +987,7 @@ beginCompilationUnit(class)
                 handleNoType(()
                 handleIdentifier(value, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.StaticMethod)
+              endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.StaticMethod)
             endFormalParameters(1, (, ), MemberKind.StaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -1010,7 +1010,7 @@ beginCompilationUnit(class)
                 handleNoType(()
                 handleIdentifier(value, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.StaticMethod)
+              endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.StaticMethod)
             endFormalParameters(1, (, ), MemberKind.StaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)

pkg/front_end/parser_testcases/augmentation/member_errors.dart.intertwined.expect

@@ -440,7 +440,7 @@ parseUnit(class)
                         ensureIdentifier((, formalParameterDeclaration)
                           listener: handleIdentifier(value, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -483,7 +483,7 @@ parseUnit(class)
                         ensureIdentifier((, formalParameterDeclaration)
                           listener: handleIdentifier(value, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -524,7 +524,7 @@ parseUnit(class)
                         ensureIdentifier((, formalParameterDeclaration)
                           listener: handleIdentifier(value, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -565,7 +565,7 @@ parseUnit(class)
                         ensureIdentifier((, formalParameterDeclaration)
                           listener: handleIdentifier(value, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -608,7 +608,7 @@ parseUnit(class)
                         ensureIdentifier((, formalParameterDeclaration)
                           listener: handleIdentifier(value, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -649,7 +649,7 @@ parseUnit(class)
                         ensureIdentifier((, formalParameterDeclaration)
                           listener: handleIdentifier(value, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -1373,7 +1373,7 @@ parseUnit(class)
                         ensureIdentifier((, formalParameterDeclaration)
                           listener: handleIdentifier(value, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.StaticMethod)
+                        listener: endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.StaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.StaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -1415,7 +1415,7 @@ parseUnit(class)
                         ensureIdentifier((, formalParameterDeclaration)
                           listener: handleIdentifier(value, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.StaticMethod)
+                        listener: endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.StaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.StaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -1457,7 +1457,7 @@ parseUnit(class)
                         ensureIdentifier((, formalParameterDeclaration)
                           listener: handleIdentifier(value, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.StaticMethod)
+                        listener: endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.StaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.StaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -1499,7 +1499,7 @@ parseUnit(class)
                         ensureIdentifier((, formalParameterDeclaration)
                           listener: handleIdentifier(value, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.StaticMethod)
+                        listener: endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.StaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.StaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()

pkg/front_end/parser_testcases/augmentation/top_level_declarations.dart.expect

@@ -69,7 +69,7 @@ beginCompilationUnit(augment)
           handleNoType(()
           handleIdentifier(value, formalParameterDeclaration)
           handleFormalParameterWithoutValue())
-        endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
       endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(null, null)
       beginBlockFunctionBody({)
@@ -90,7 +90,7 @@ beginCompilationUnit(augment)
           handleNoType(()
           handleIdentifier(value, formalParameterDeclaration)
           handleFormalParameterWithoutValue())
-        endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
       endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(null, null)
       beginBlockFunctionBody({)

pkg/front_end/parser_testcases/augmentation/top_level_declarations.dart.intertwined.expect

@@ -148,7 +148,7 @@ parseUnit(augment)
                 ensureIdentifier((, formalParameterDeclaration)
                   listener: handleIdentifier(value, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue())
-                listener: endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
         parseAsyncModifierOpt())
           listener: handleAsyncModifier(null, null)
@@ -185,7 +185,7 @@ parseUnit(augment)
                 ensureIdentifier((, formalParameterDeclaration)
                   listener: handleIdentifier(value, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue())
-                listener: endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
         parseAsyncModifierOpt())
           listener: handleAsyncModifier(null, null)

pkg/front_end/parser_testcases/augmentation/top_level_errors.dart.expect

@@ -304,7 +304,7 @@ beginCompilationUnit(augment)
           handleNoType(()
           handleIdentifier(value, formalParameterDeclaration)
           handleFormalParameterWithoutValue())
-        endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
       endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(null, null)
       beginBlockFunctionBody({)
@@ -326,7 +326,7 @@ beginCompilationUnit(augment)
           handleNoType(()
           handleIdentifier(value, formalParameterDeclaration)
           handleFormalParameterWithoutValue())
-        endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
       endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(null, null)
       handleEmptyFunctionBody(;)
@@ -347,7 +347,7 @@ beginCompilationUnit(augment)
           handleNoType(()
           handleIdentifier(value, formalParameterDeclaration)
           handleFormalParameterWithoutValue())
-        endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
       endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(null, null)
       handleEmptyFunctionBody(;)
@@ -368,7 +368,7 @@ beginCompilationUnit(augment)
           handleNoType(()
           handleIdentifier(value, formalParameterDeclaration)
           handleFormalParameterWithoutValue())
-        endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
       endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(null, null)
       beginBlockFunctionBody({)
@@ -390,7 +390,7 @@ beginCompilationUnit(augment)
           handleNoType(()
           handleIdentifier(value, formalParameterDeclaration)
           handleFormalParameterWithoutValue())
-        endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
       endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(null, null)
       handleEmptyFunctionBody(;)
@@ -411,7 +411,7 @@ beginCompilationUnit(augment)
           handleNoType(()
           handleIdentifier(value, formalParameterDeclaration)
           handleFormalParameterWithoutValue())
-        endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
       endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(null, null)
       handleEmptyFunctionBody(;)

pkg/front_end/parser_testcases/augmentation/top_level_errors.dart.intertwined.expect

@@ -370,7 +370,7 @@ parseUnit(augment)
                 ensureIdentifier((, formalParameterDeclaration)
                   listener: handleIdentifier(value, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue())
-                listener: endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
         parseAsyncModifierOpt())
           listener: handleAsyncModifier(null, null)
@@ -410,7 +410,7 @@ parseUnit(augment)
                 ensureIdentifier((, formalParameterDeclaration)
                   listener: handleIdentifier(value, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue())
-                listener: endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
         parseAsyncModifierOpt())
           listener: handleAsyncModifier(null, null)
@@ -448,7 +448,7 @@ parseUnit(augment)
                 ensureIdentifier((, formalParameterDeclaration)
                   listener: handleIdentifier(value, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue())
-                listener: endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
         parseAsyncModifierOpt())
           listener: handleAsyncModifier(null, null)
@@ -485,7 +485,7 @@ parseUnit(augment)
                 ensureIdentifier((, formalParameterDeclaration)
                   listener: handleIdentifier(value, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue())
-                listener: endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
         parseAsyncModifierOpt())
           listener: handleAsyncModifier(null, null)
@@ -524,7 +524,7 @@ parseUnit(augment)
                 ensureIdentifier((, formalParameterDeclaration)
                   listener: handleIdentifier(value, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue())
-                listener: endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
         parseAsyncModifierOpt())
           listener: handleAsyncModifier(null, null)
@@ -561,7 +561,7 @@ parseUnit(augment)
                 ensureIdentifier((, formalParameterDeclaration)
                   listener: handleIdentifier(value, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue())
-                listener: endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
         parseAsyncModifierOpt())
           listener: handleAsyncModifier(null, null)

pkg/front_end/parser_testcases/coverage/bar_eq.dart.expect

@@ -15,7 +15,7 @@ beginCompilationUnit(void)
           handleType(dynamic, null)
           handleIdentifier(bar, formalParameterDeclaration)
           handleFormalParameterWithoutValue())
-        endFormalParameter(null, null, null, bar, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, bar, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
       endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(null, null)
       beginBlockFunctionBody({)

pkg/front_end/parser_testcases/coverage/bar_eq.dart.intertwined.expect

@@ -30,7 +30,7 @@ parseUnit(void)
                 ensureIdentifier(dynamic, formalParameterDeclaration)
                   listener: handleIdentifier(bar, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue())
-                listener: endFormalParameter(null, null, null, bar, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, bar, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
         parseAsyncModifierOpt())
           listener: handleAsyncModifier(null, null)

pkg/front_end/parser_testcases/coverage/slash_eq.dart.expect

@@ -17,7 +17,7 @@ beginCompilationUnit(dynamic)
           handleType(dynamic, null)
           handleIdentifier(bar, formalParameterDeclaration)
           handleFormalParameterWithoutValue())
-        endFormalParameter(null, null, null, bar, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, bar, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
       endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(null, null)
       beginBlockFunctionBody({)

pkg/front_end/parser_testcases/coverage/slash_eq.dart.intertwined.expect

@@ -32,7 +32,7 @@ parseUnit(dynamic)
                 ensureIdentifier(dynamic, formalParameterDeclaration)
                   listener: handleIdentifier(bar, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue())
-                listener: endFormalParameter(null, null, null, bar, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, bar, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
         parseAsyncModifierOpt())
           listener: handleAsyncModifier(null, null)

pkg/front_end/parser_testcases/coverage/string1.dart.expect

@@ -59,7 +59,7 @@ beginCompilationUnit(String)
           handleType(dynamic, null)
           handleIdentifier(bar, formalParameterDeclaration)
           handleFormalParameterWithoutValue())
-        endFormalParameter(null, null, null, bar, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, bar, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
       endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(null, null)
       beginBlockFunctionBody({)

pkg/front_end/parser_testcases/coverage/string1.dart.intertwined.expect

@@ -32,7 +32,7 @@ parseUnit(UnterminatedString("))
                 ensureIdentifier(dynamic, formalParameterDeclaration)
                   listener: handleIdentifier(bar, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue())
-                listener: endFormalParameter(null, null, null, bar, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, bar, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
         parseAsyncModifierOpt())
           listener: handleAsyncModifier(null, null)

pkg/front_end/parser_testcases/coverage/string2.dart.expect

@@ -45,7 +45,7 @@ beginCompilationUnit(void)
           handleType(dynamic, null)
           handleIdentifier(bar, formalParameterDeclaration)
           handleFormalParameterWithoutValue())
-        endFormalParameter(null, null, null, bar, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, bar, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
       endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(null, null)
       beginBlockFunctionBody({)

pkg/front_end/parser_testcases/coverage/string2.dart.intertwined.expect

@@ -30,7 +30,7 @@ parseUnit(UnterminatedString("""))
                 ensureIdentifier(dynamic, formalParameterDeclaration)
                   listener: handleIdentifier(bar, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue())
-                listener: endFormalParameter(null, null, null, bar, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, bar, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
         parseAsyncModifierOpt())
           listener: handleAsyncModifier(null, null)

pkg/front_end/parser_testcases/declaring_constructors/class_primary_constructor_error.dart.expect

@@ -73,7 +73,7 @@ beginCompilationUnit(class)
               handleNoType({)
               handleIdentifier(, formalParameterDeclaration)
               handleFormalParameterWithoutValue(})
-            endFormalParameter(null, null, null, , null, null, FormalParameterKind.optionalNamed, MemberKind.PrimaryConstructor)
+            endFormalParameter(null, null, null, null, , null, null, FormalParameterKind.optionalNamed, MemberKind.PrimaryConstructor)
           endOptionalFormalParameters(1, {, }, MemberKind.PrimaryConstructor)
           handleRecoverableError(Message[Template(ExpectedButGot), Expected ')' before this., null, {string: )}], class, class)
         endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
@@ -169,7 +169,7 @@ beginCompilationUnit(class)
               handleNoType({)
               handleIdentifier(, formalParameterDeclaration)
               handleFormalParameterWithoutValue(})
-            endFormalParameter(null, null, null, , null, null, FormalParameterKind.optionalNamed, MemberKind.PrimaryConstructor)
+            endFormalParameter(null, null, null, null, , null, null, FormalParameterKind.optionalNamed, MemberKind.PrimaryConstructor)
           endOptionalFormalParameters(1, {, }, MemberKind.PrimaryConstructor)
           handleRecoverableError(Message[Template(ExpectedButGot), Expected ')' before this., null, {string: )}], class, class)
         endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)

pkg/front_end/parser_testcases/declaring_constructors/class_primary_constructor_error.dart.intertwined.expect

@@ -34,7 +34,7 @@ parseUnit(class)
                     ensureIdentifier({, formalParameterDeclaration)
                       listener: handleIdentifier(, formalParameterDeclaration)
                     listener: handleFormalParameterWithoutValue(})
-                    listener: endFormalParameter(null, null, null, , null, null, FormalParameterKind.optionalNamed, MemberKind.PrimaryConstructor)
+                    listener: endFormalParameter(null, null, null, null, , null, null, FormalParameterKind.optionalNamed, MemberKind.PrimaryConstructor)
                   listener: endOptionalFormalParameters(1, {, }, MemberKind.PrimaryConstructor)
                 ensureCloseParen(}, ()
                   reportRecoverableError(class, Message[Template(ExpectedButGot), Expected ')' before this., null, {string: )}])
@@ -204,7 +204,7 @@ parseUnit(class)
                     ensureIdentifier({, formalParameterDeclaration)
                       listener: handleIdentifier(, formalParameterDeclaration)
                     listener: handleFormalParameterWithoutValue(})
-                    listener: endFormalParameter(null, null, null, , null, null, FormalParameterKind.optionalNamed, MemberKind.PrimaryConstructor)
+                    listener: endFormalParameter(null, null, null, null, , null, null, FormalParameterKind.optionalNamed, MemberKind.PrimaryConstructor)
                   listener: endOptionalFormalParameters(1, {, }, MemberKind.PrimaryConstructor)
                 ensureCloseParen(}, ()
                   reportRecoverableError(class, Message[Template(ExpectedButGot), Expected ')' before this., null, {string: )}])

pkg/front_end/parser_testcases/declaring_constructors/declaring_parameter.dart

@@ -0,0 +1,23 @@
+class C() {}
+class C(a) {}
+class C(a b) {}
+class C(var a) {}
+class C(final a) {}
+class C(var a b) {}
+class C(final a b) {}
+
+enum E() {}
+enum E(a) {}
+enum E(a b) {}
+enum E(var a) {}
+enum E(final a) {}
+enum E(var a b) {}
+enum E(final a b) {}
+
+extension type ET() {}
+extension type ET(a) {}
+extension type ET(a b) {}
+extension type ET(var a) {}
+extension type ET(final a) {}
+extension type ET(var a b) {}
+extension type ET(final a b) {}

pkg/front_end/parser_testcases/declaring_constructors/declaring_parameter.dart.expect

@@ -0,0 +1,503 @@
+beginCompilationUnit(class)
+  beginMetadataStar(class)
+  endMetadataStar(0)
+  beginClassOrMixinOrNamedMixinApplicationPrelude(class)
+    handleIdentifier(C, classOrMixinDeclaration)
+    handleNoTypeVariables(()
+    beginClassDeclaration(class, null, null, null, null, null, null, null, null, C)
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+        endFormalParameters(0, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, false)
+      handleNoType())
+      handleClassExtends(null, 1)
+      handleClassNoWithClause()
+      handleImplements(null, 0)
+      handleClassHeader(class, class, null)
+      beginClassOrMixinOrExtensionBody(DeclarationKind.Class, {)
+      endClassOrMixinOrExtensionBody(DeclarationKind.Class, 0, {, })
+    endClassDeclaration(class, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(class)
+  endMetadataStar(0)
+  beginClassOrMixinOrNamedMixinApplicationPrelude(class)
+    handleIdentifier(C, classOrMixinDeclaration)
+    handleNoTypeVariables(()
+    beginClassDeclaration(class, null, null, null, null, null, null, null, null, C)
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(a)
+          endMetadataStar(0)
+          beginFormalParameter(a, MemberKind.PrimaryConstructor, null, null, null)
+            handleNoType(()
+            handleIdentifier(a, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(null, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, false)
+      handleNoType())
+      handleClassExtends(null, 1)
+      handleClassNoWithClause()
+      handleImplements(null, 0)
+      handleClassHeader(class, class, null)
+      beginClassOrMixinOrExtensionBody(DeclarationKind.Class, {)
+      endClassOrMixinOrExtensionBody(DeclarationKind.Class, 0, {, })
+    endClassDeclaration(class, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(class)
+  endMetadataStar(0)
+  beginClassOrMixinOrNamedMixinApplicationPrelude(class)
+    handleIdentifier(C, classOrMixinDeclaration)
+    handleNoTypeVariables(()
+    beginClassDeclaration(class, null, null, null, null, null, null, null, null, C)
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(a)
+          endMetadataStar(0)
+          beginFormalParameter(a, MemberKind.PrimaryConstructor, null, null, null)
+            handleIdentifier(a, typeReference)
+            handleNoTypeArguments(b)
+            handleType(a, null)
+            handleIdentifier(b, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, false)
+      handleNoType())
+      handleClassExtends(null, 1)
+      handleClassNoWithClause()
+      handleImplements(null, 0)
+      handleClassHeader(class, class, null)
+      beginClassOrMixinOrExtensionBody(DeclarationKind.Class, {)
+      endClassOrMixinOrExtensionBody(DeclarationKind.Class, 0, {, })
+    endClassDeclaration(class, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(class)
+  endMetadataStar(0)
+  beginClassOrMixinOrNamedMixinApplicationPrelude(class)
+    handleIdentifier(C, classOrMixinDeclaration)
+    handleNoTypeVariables(()
+    beginClassDeclaration(class, null, null, null, null, null, null, null, null, C)
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(var)
+          endMetadataStar(0)
+          beginFormalParameter(var, MemberKind.PrimaryConstructor, null, null, var)
+            handleNoType(var)
+            handleIdentifier(a, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(var, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, false)
+      handleNoType())
+      handleClassExtends(null, 1)
+      handleClassNoWithClause()
+      handleImplements(null, 0)
+      handleClassHeader(class, class, null)
+      beginClassOrMixinOrExtensionBody(DeclarationKind.Class, {)
+      endClassOrMixinOrExtensionBody(DeclarationKind.Class, 0, {, })
+    endClassDeclaration(class, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(class)
+  endMetadataStar(0)
+  beginClassOrMixinOrNamedMixinApplicationPrelude(class)
+    handleIdentifier(C, classOrMixinDeclaration)
+    handleNoTypeVariables(()
+    beginClassDeclaration(class, null, null, null, null, null, null, null, null, C)
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(final)
+          endMetadataStar(0)
+          beginFormalParameter(final, MemberKind.PrimaryConstructor, null, null, final)
+            handleNoType(final)
+            handleIdentifier(a, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(final, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, false)
+      handleNoType())
+      handleClassExtends(null, 1)
+      handleClassNoWithClause()
+      handleImplements(null, 0)
+      handleClassHeader(class, class, null)
+      beginClassOrMixinOrExtensionBody(DeclarationKind.Class, {)
+      endClassOrMixinOrExtensionBody(DeclarationKind.Class, 0, {, })
+    endClassDeclaration(class, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(class)
+  endMetadataStar(0)
+  beginClassOrMixinOrNamedMixinApplicationPrelude(class)
+    handleIdentifier(C, classOrMixinDeclaration)
+    handleNoTypeVariables(()
+    beginClassDeclaration(class, null, null, null, null, null, null, null, null, C)
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(var)
+          endMetadataStar(0)
+          beginFormalParameter(var, MemberKind.PrimaryConstructor, null, null, var)
+            handleIdentifier(a, typeReference)
+            handleNoTypeArguments(b)
+            handleType(a, null)
+            handleIdentifier(b, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(var, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, false)
+      handleNoType())
+      handleClassExtends(null, 1)
+      handleClassNoWithClause()
+      handleImplements(null, 0)
+      handleClassHeader(class, class, null)
+      beginClassOrMixinOrExtensionBody(DeclarationKind.Class, {)
+      endClassOrMixinOrExtensionBody(DeclarationKind.Class, 0, {, })
+    endClassDeclaration(class, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(class)
+  endMetadataStar(0)
+  beginClassOrMixinOrNamedMixinApplicationPrelude(class)
+    handleIdentifier(C, classOrMixinDeclaration)
+    handleNoTypeVariables(()
+    beginClassDeclaration(class, null, null, null, null, null, null, null, null, C)
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(final)
+          endMetadataStar(0)
+          beginFormalParameter(final, MemberKind.PrimaryConstructor, null, null, final)
+            handleIdentifier(a, typeReference)
+            handleNoTypeArguments(b)
+            handleType(a, null)
+            handleIdentifier(b, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(final, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, false)
+      handleNoType())
+      handleClassExtends(null, 1)
+      handleClassNoWithClause()
+      handleImplements(null, 0)
+      handleClassHeader(class, class, null)
+      beginClassOrMixinOrExtensionBody(DeclarationKind.Class, {)
+      endClassOrMixinOrExtensionBody(DeclarationKind.Class, 0, {, })
+    endClassDeclaration(class, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(enum)
+  endMetadataStar(0)
+  beginUncategorizedTopLevelDeclaration(enum)
+    handleIdentifier(E, enumDeclaration)
+    beginEnum(enum)
+      handleNoTypeVariables(()
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+        endFormalParameters(0, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, false)
+      handleEnumNoWithClause()
+      handleImplements(null, 0)
+      handleEnumHeader(null, enum, {)
+      beginEnumBody({)
+        handleEnumElements(}, 0)
+      endEnumBody({, })
+    endEnum(enum, enum, {, 0, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(enum)
+  endMetadataStar(0)
+  beginUncategorizedTopLevelDeclaration(enum)
+    handleIdentifier(E, enumDeclaration)
+    beginEnum(enum)
+      handleNoTypeVariables(()
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(a)
+          endMetadataStar(0)
+          beginFormalParameter(a, MemberKind.PrimaryConstructor, null, null, null)
+            handleNoType(()
+            handleIdentifier(a, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(null, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, false)
+      handleEnumNoWithClause()
+      handleImplements(null, 0)
+      handleEnumHeader(null, enum, {)
+      beginEnumBody({)
+        handleEnumElements(}, 0)
+      endEnumBody({, })
+    endEnum(enum, enum, {, 0, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(enum)
+  endMetadataStar(0)
+  beginUncategorizedTopLevelDeclaration(enum)
+    handleIdentifier(E, enumDeclaration)
+    beginEnum(enum)
+      handleNoTypeVariables(()
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(a)
+          endMetadataStar(0)
+          beginFormalParameter(a, MemberKind.PrimaryConstructor, null, null, null)
+            handleIdentifier(a, typeReference)
+            handleNoTypeArguments(b)
+            handleType(a, null)
+            handleIdentifier(b, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, false)
+      handleEnumNoWithClause()
+      handleImplements(null, 0)
+      handleEnumHeader(null, enum, {)
+      beginEnumBody({)
+        handleEnumElements(}, 0)
+      endEnumBody({, })
+    endEnum(enum, enum, {, 0, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(enum)
+  endMetadataStar(0)
+  beginUncategorizedTopLevelDeclaration(enum)
+    handleIdentifier(E, enumDeclaration)
+    beginEnum(enum)
+      handleNoTypeVariables(()
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(var)
+          endMetadataStar(0)
+          beginFormalParameter(var, MemberKind.PrimaryConstructor, null, null, var)
+            handleNoType(var)
+            handleIdentifier(a, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(var, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, false)
+      handleEnumNoWithClause()
+      handleImplements(null, 0)
+      handleEnumHeader(null, enum, {)
+      beginEnumBody({)
+        handleEnumElements(}, 0)
+      endEnumBody({, })
+    endEnum(enum, enum, {, 0, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(enum)
+  endMetadataStar(0)
+  beginUncategorizedTopLevelDeclaration(enum)
+    handleIdentifier(E, enumDeclaration)
+    beginEnum(enum)
+      handleNoTypeVariables(()
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(final)
+          endMetadataStar(0)
+          beginFormalParameter(final, MemberKind.PrimaryConstructor, null, null, final)
+            handleNoType(final)
+            handleIdentifier(a, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(final, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, false)
+      handleEnumNoWithClause()
+      handleImplements(null, 0)
+      handleEnumHeader(null, enum, {)
+      beginEnumBody({)
+        handleEnumElements(}, 0)
+      endEnumBody({, })
+    endEnum(enum, enum, {, 0, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(enum)
+  endMetadataStar(0)
+  beginUncategorizedTopLevelDeclaration(enum)
+    handleIdentifier(E, enumDeclaration)
+    beginEnum(enum)
+      handleNoTypeVariables(()
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(var)
+          endMetadataStar(0)
+          beginFormalParameter(var, MemberKind.PrimaryConstructor, null, null, var)
+            handleIdentifier(a, typeReference)
+            handleNoTypeArguments(b)
+            handleType(a, null)
+            handleIdentifier(b, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(var, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, false)
+      handleEnumNoWithClause()
+      handleImplements(null, 0)
+      handleEnumHeader(null, enum, {)
+      beginEnumBody({)
+        handleEnumElements(}, 0)
+      endEnumBody({, })
+    endEnum(enum, enum, {, 0, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(enum)
+  endMetadataStar(0)
+  beginUncategorizedTopLevelDeclaration(enum)
+    handleIdentifier(E, enumDeclaration)
+    beginEnum(enum)
+      handleNoTypeVariables(()
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(final)
+          endMetadataStar(0)
+          beginFormalParameter(final, MemberKind.PrimaryConstructor, null, null, final)
+            handleIdentifier(a, typeReference)
+            handleNoTypeArguments(b)
+            handleType(a, null)
+            handleIdentifier(b, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(final, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, false)
+      handleEnumNoWithClause()
+      handleImplements(null, 0)
+      handleEnumHeader(null, enum, {)
+      beginEnumBody({)
+        handleEnumElements(}, 0)
+      endEnumBody({, })
+    endEnum(enum, enum, {, 0, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(extension)
+  endMetadataStar(0)
+  beginExtensionDeclarationPrelude(extension)
+    handleNoTypeVariables(()
+    beginExtensionTypeDeclaration(null, extension, ET)
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+        endFormalParameters(0, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, true)
+      handleImplements(null, 0)
+      beginClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, {)
+      endClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, 0, {, })
+    endExtensionTypeDeclaration(extension, null, extension, type, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(extension)
+  endMetadataStar(0)
+  beginExtensionDeclarationPrelude(extension)
+    handleNoTypeVariables(()
+    beginExtensionTypeDeclaration(null, extension, ET)
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(a)
+          endMetadataStar(0)
+          beginFormalParameter(a, MemberKind.PrimaryConstructor, null, null, null)
+            handleNoType(()
+            handleIdentifier(a, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(null, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, true)
+      handleImplements(null, 0)
+      beginClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, {)
+      endClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, 0, {, })
+    endExtensionTypeDeclaration(extension, null, extension, type, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(extension)
+  endMetadataStar(0)
+  beginExtensionDeclarationPrelude(extension)
+    handleNoTypeVariables(()
+    beginExtensionTypeDeclaration(null, extension, ET)
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(a)
+          endMetadataStar(0)
+          beginFormalParameter(a, MemberKind.PrimaryConstructor, null, null, null)
+            handleIdentifier(a, typeReference)
+            handleNoTypeArguments(b)
+            handleType(a, null)
+            handleIdentifier(b, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, true)
+      handleImplements(null, 0)
+      beginClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, {)
+      endClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, 0, {, })
+    endExtensionTypeDeclaration(extension, null, extension, type, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(extension)
+  endMetadataStar(0)
+  beginExtensionDeclarationPrelude(extension)
+    handleNoTypeVariables(()
+    beginExtensionTypeDeclaration(null, extension, ET)
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(var)
+          endMetadataStar(0)
+          beginFormalParameter(var, MemberKind.PrimaryConstructor, null, null, var)
+            handleNoType(var)
+            handleIdentifier(a, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(var, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, true)
+      handleImplements(null, 0)
+      beginClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, {)
+      endClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, 0, {, })
+    endExtensionTypeDeclaration(extension, null, extension, type, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(extension)
+  endMetadataStar(0)
+  beginExtensionDeclarationPrelude(extension)
+    handleNoTypeVariables(()
+    beginExtensionTypeDeclaration(null, extension, ET)
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(final)
+          endMetadataStar(0)
+          beginFormalParameter(final, MemberKind.PrimaryConstructor, null, null, final)
+            handleNoType(final)
+            handleIdentifier(a, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(final, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, true)
+      handleImplements(null, 0)
+      beginClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, {)
+      endClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, 0, {, })
+    endExtensionTypeDeclaration(extension, null, extension, type, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(extension)
+  endMetadataStar(0)
+  beginExtensionDeclarationPrelude(extension)
+    handleNoTypeVariables(()
+    beginExtensionTypeDeclaration(null, extension, ET)
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(var)
+          endMetadataStar(0)
+          beginFormalParameter(var, MemberKind.PrimaryConstructor, null, null, var)
+            handleIdentifier(a, typeReference)
+            handleNoTypeArguments(b)
+            handleType(a, null)
+            handleIdentifier(b, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(var, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, true)
+      handleImplements(null, 0)
+      beginClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, {)
+      endClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, 0, {, })
+    endExtensionTypeDeclaration(extension, null, extension, type, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(extension)
+  endMetadataStar(0)
+  beginExtensionDeclarationPrelude(extension)
+    handleNoTypeVariables(()
+    beginExtensionTypeDeclaration(null, extension, ET)
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(final)
+          endMetadataStar(0)
+          beginFormalParameter(final, MemberKind.PrimaryConstructor, null, null, final)
+            handleIdentifier(a, typeReference)
+            handleNoTypeArguments(b)
+            handleType(a, null)
+            handleIdentifier(b, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(final, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, true)
+      handleImplements(null, 0)
+      beginClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, {)
+      endClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, 0, {, })
+    endExtensionTypeDeclaration(extension, null, extension, type, })
+  endTopLevelDeclaration(})
+endCompilationUnit(21, )

pkg/front_end/parser_testcases/declaring_constructors/declaring_parameter.dart.intertwined.expect

@@ -0,0 +1,820 @@
+parseUnit(class)
+  skipErrorTokens(class)
+  listener: beginCompilationUnit(class)
+  syntheticPreviousToken(class)
+  parseTopLevelDeclarationImpl(, DirectiveContext(DirectiveState.Unknown))
+    parseMetadataStar()
+      listener: beginMetadataStar(class)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(class, , class, null, null, null, null, DirectiveContext(DirectiveState.Unknown))
+      parseClassOrNamedMixinApplication(class, null, null, null, null, null, null, null, null, class)
+        listener: beginClassOrMixinOrNamedMixinApplicationPrelude(class)
+        ensureIdentifier(class, classOrMixinDeclaration)
+          listener: handleIdentifier(C, classOrMixinDeclaration)
+        listener: handleNoTypeVariables(()
+        listener: beginClassDeclaration(class, null, null, null, null, null, null, null, null, C)
+        parseClass(C, class, class, null, C)
+          parsePrimaryConstructorOpt(C, null, false)
+            listener: beginPrimaryConstructor(()
+            parseFormalParameters(C, MemberKind.PrimaryConstructor)
+              parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+                listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+                listener: endFormalParameters(0, (, ), MemberKind.PrimaryConstructor)
+            listener: endPrimaryConstructor((, null, false, false)
+          parseClassHeaderOpt(), class, class)
+            parseClassExtendsOpt(), DeclarationHeaderKind.Class)
+              listener: handleNoType())
+              listener: handleClassExtends(null, 1)
+            parseClassWithClauseOpt())
+              listener: handleClassNoWithClause()
+            parseClassOrMixinOrEnumImplementsOpt())
+              listener: handleImplements(null, 0)
+            listener: handleClassHeader(class, class, null)
+          parseClassOrMixinOrExtensionBody(), DeclarationKind.Class, C)
+            listener: beginClassOrMixinOrExtensionBody(DeclarationKind.Class, {)
+            notEofOrType(CLOSE_CURLY_BRACKET, })
+            listener: endClassOrMixinOrExtensionBody(DeclarationKind.Class, 0, {, })
+          listener: endClassDeclaration(class, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(class)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(class, }, class, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseClassOrNamedMixinApplication(class, null, null, null, null, null, null, null, null, class)
+        listener: beginClassOrMixinOrNamedMixinApplicationPrelude(class)
+        ensureIdentifier(class, classOrMixinDeclaration)
+          listener: handleIdentifier(C, classOrMixinDeclaration)
+        listener: handleNoTypeVariables(()
+        listener: beginClassDeclaration(class, null, null, null, null, null, null, null, null, C)
+        parseClass(C, class, class, null, C)
+          parsePrimaryConstructorOpt(C, null, false)
+            listener: beginPrimaryConstructor(()
+            parseFormalParameters(C, MemberKind.PrimaryConstructor)
+              parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+                listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+                parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                  parseMetadataStar(()
+                    listener: beginMetadataStar(a)
+                    listener: endMetadataStar(0)
+                  listener: beginFormalParameter(a, MemberKind.PrimaryConstructor, null, null, null)
+                  listener: handleNoType(()
+                  ensureIdentifier((, formalParameterDeclaration)
+                    listener: handleIdentifier(a, formalParameterDeclaration)
+                  listener: handleFormalParameterWithoutValue())
+                  listener: endFormalParameter(null, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+            listener: endPrimaryConstructor((, null, false, false)
+          parseClassHeaderOpt(), class, class)
+            parseClassExtendsOpt(), DeclarationHeaderKind.Class)
+              listener: handleNoType())
+              listener: handleClassExtends(null, 1)
+            parseClassWithClauseOpt())
+              listener: handleClassNoWithClause()
+            parseClassOrMixinOrEnumImplementsOpt())
+              listener: handleImplements(null, 0)
+            listener: handleClassHeader(class, class, null)
+          parseClassOrMixinOrExtensionBody(), DeclarationKind.Class, C)
+            listener: beginClassOrMixinOrExtensionBody(DeclarationKind.Class, {)
+            notEofOrType(CLOSE_CURLY_BRACKET, })
+            listener: endClassOrMixinOrExtensionBody(DeclarationKind.Class, 0, {, })
+          listener: endClassDeclaration(class, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(class)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(class, }, class, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseClassOrNamedMixinApplication(class, null, null, null, null, null, null, null, null, class)
+        listener: beginClassOrMixinOrNamedMixinApplicationPrelude(class)
+        ensureIdentifier(class, classOrMixinDeclaration)
+          listener: handleIdentifier(C, classOrMixinDeclaration)
+        listener: handleNoTypeVariables(()
+        listener: beginClassDeclaration(class, null, null, null, null, null, null, null, null, C)
+        parseClass(C, class, class, null, C)
+          parsePrimaryConstructorOpt(C, null, false)
+            listener: beginPrimaryConstructor(()
+            parseFormalParameters(C, MemberKind.PrimaryConstructor)
+              parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+                listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+                parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                  parseMetadataStar(()
+                    listener: beginMetadataStar(a)
+                    listener: endMetadataStar(0)
+                  listener: beginFormalParameter(a, MemberKind.PrimaryConstructor, null, null, null)
+                  listener: handleIdentifier(a, typeReference)
+                  listener: handleNoTypeArguments(b)
+                  listener: handleType(a, null)
+                  ensureIdentifier(a, formalParameterDeclaration)
+                    listener: handleIdentifier(b, formalParameterDeclaration)
+                  listener: handleFormalParameterWithoutValue())
+                  listener: endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+            listener: endPrimaryConstructor((, null, false, false)
+          parseClassHeaderOpt(), class, class)
+            parseClassExtendsOpt(), DeclarationHeaderKind.Class)
+              listener: handleNoType())
+              listener: handleClassExtends(null, 1)
+            parseClassWithClauseOpt())
+              listener: handleClassNoWithClause()
+            parseClassOrMixinOrEnumImplementsOpt())
+              listener: handleImplements(null, 0)
+            listener: handleClassHeader(class, class, null)
+          parseClassOrMixinOrExtensionBody(), DeclarationKind.Class, C)
+            listener: beginClassOrMixinOrExtensionBody(DeclarationKind.Class, {)
+            notEofOrType(CLOSE_CURLY_BRACKET, })
+            listener: endClassOrMixinOrExtensionBody(DeclarationKind.Class, 0, {, })
+          listener: endClassDeclaration(class, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(class)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(class, }, class, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseClassOrNamedMixinApplication(class, null, null, null, null, null, null, null, null, class)
+        listener: beginClassOrMixinOrNamedMixinApplicationPrelude(class)
+        ensureIdentifier(class, classOrMixinDeclaration)
+          listener: handleIdentifier(C, classOrMixinDeclaration)
+        listener: handleNoTypeVariables(()
+        listener: beginClassDeclaration(class, null, null, null, null, null, null, null, null, C)
+        parseClass(C, class, class, null, C)
+          parsePrimaryConstructorOpt(C, null, false)
+            listener: beginPrimaryConstructor(()
+            parseFormalParameters(C, MemberKind.PrimaryConstructor)
+              parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+                listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+                parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                  parseMetadataStar(()
+                    listener: beginMetadataStar(var)
+                    listener: endMetadataStar(0)
+                  listener: beginFormalParameter(var, MemberKind.PrimaryConstructor, null, null, var)
+                  listener: handleNoType(var)
+                  ensureIdentifier(var, formalParameterDeclaration)
+                    listener: handleIdentifier(a, formalParameterDeclaration)
+                  listener: handleFormalParameterWithoutValue())
+                  listener: endFormalParameter(var, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+            listener: endPrimaryConstructor((, null, false, false)
+          parseClassHeaderOpt(), class, class)
+            parseClassExtendsOpt(), DeclarationHeaderKind.Class)
+              listener: handleNoType())
+              listener: handleClassExtends(null, 1)
+            parseClassWithClauseOpt())
+              listener: handleClassNoWithClause()
+            parseClassOrMixinOrEnumImplementsOpt())
+              listener: handleImplements(null, 0)
+            listener: handleClassHeader(class, class, null)
+          parseClassOrMixinOrExtensionBody(), DeclarationKind.Class, C)
+            listener: beginClassOrMixinOrExtensionBody(DeclarationKind.Class, {)
+            notEofOrType(CLOSE_CURLY_BRACKET, })
+            listener: endClassOrMixinOrExtensionBody(DeclarationKind.Class, 0, {, })
+          listener: endClassDeclaration(class, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(class)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(class, }, class, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseClassOrNamedMixinApplication(class, null, null, null, null, null, null, null, null, class)
+        listener: beginClassOrMixinOrNamedMixinApplicationPrelude(class)
+        ensureIdentifier(class, classOrMixinDeclaration)
+          listener: handleIdentifier(C, classOrMixinDeclaration)
+        listener: handleNoTypeVariables(()
+        listener: beginClassDeclaration(class, null, null, null, null, null, null, null, null, C)
+        parseClass(C, class, class, null, C)
+          parsePrimaryConstructorOpt(C, null, false)
+            listener: beginPrimaryConstructor(()
+            parseFormalParameters(C, MemberKind.PrimaryConstructor)
+              parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+                listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+                parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                  parseMetadataStar(()
+                    listener: beginMetadataStar(final)
+                    listener: endMetadataStar(0)
+                  listener: beginFormalParameter(final, MemberKind.PrimaryConstructor, null, null, final)
+                  listener: handleNoType(final)
+                  ensureIdentifier(final, formalParameterDeclaration)
+                    listener: handleIdentifier(a, formalParameterDeclaration)
+                  listener: handleFormalParameterWithoutValue())
+                  listener: endFormalParameter(final, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+            listener: endPrimaryConstructor((, null, false, false)
+          parseClassHeaderOpt(), class, class)
+            parseClassExtendsOpt(), DeclarationHeaderKind.Class)
+              listener: handleNoType())
+              listener: handleClassExtends(null, 1)
+            parseClassWithClauseOpt())
+              listener: handleClassNoWithClause()
+            parseClassOrMixinOrEnumImplementsOpt())
+              listener: handleImplements(null, 0)
+            listener: handleClassHeader(class, class, null)
+          parseClassOrMixinOrExtensionBody(), DeclarationKind.Class, C)
+            listener: beginClassOrMixinOrExtensionBody(DeclarationKind.Class, {)
+            notEofOrType(CLOSE_CURLY_BRACKET, })
+            listener: endClassOrMixinOrExtensionBody(DeclarationKind.Class, 0, {, })
+          listener: endClassDeclaration(class, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(class)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(class, }, class, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseClassOrNamedMixinApplication(class, null, null, null, null, null, null, null, null, class)
+        listener: beginClassOrMixinOrNamedMixinApplicationPrelude(class)
+        ensureIdentifier(class, classOrMixinDeclaration)
+          listener: handleIdentifier(C, classOrMixinDeclaration)
+        listener: handleNoTypeVariables(()
+        listener: beginClassDeclaration(class, null, null, null, null, null, null, null, null, C)
+        parseClass(C, class, class, null, C)
+          parsePrimaryConstructorOpt(C, null, false)
+            listener: beginPrimaryConstructor(()
+            parseFormalParameters(C, MemberKind.PrimaryConstructor)
+              parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+                listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+                parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                  parseMetadataStar(()
+                    listener: beginMetadataStar(var)
+                    listener: endMetadataStar(0)
+                  listener: beginFormalParameter(var, MemberKind.PrimaryConstructor, null, null, var)
+                  listener: handleIdentifier(a, typeReference)
+                  listener: handleNoTypeArguments(b)
+                  listener: handleType(a, null)
+                  ensureIdentifier(a, formalParameterDeclaration)
+                    listener: handleIdentifier(b, formalParameterDeclaration)
+                  listener: handleFormalParameterWithoutValue())
+                  listener: endFormalParameter(var, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+            listener: endPrimaryConstructor((, null, false, false)
+          parseClassHeaderOpt(), class, class)
+            parseClassExtendsOpt(), DeclarationHeaderKind.Class)
+              listener: handleNoType())
+              listener: handleClassExtends(null, 1)
+            parseClassWithClauseOpt())
+              listener: handleClassNoWithClause()
+            parseClassOrMixinOrEnumImplementsOpt())
+              listener: handleImplements(null, 0)
+            listener: handleClassHeader(class, class, null)
+          parseClassOrMixinOrExtensionBody(), DeclarationKind.Class, C)
+            listener: beginClassOrMixinOrExtensionBody(DeclarationKind.Class, {)
+            notEofOrType(CLOSE_CURLY_BRACKET, })
+            listener: endClassOrMixinOrExtensionBody(DeclarationKind.Class, 0, {, })
+          listener: endClassDeclaration(class, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(class)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(class, }, class, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseClassOrNamedMixinApplication(class, null, null, null, null, null, null, null, null, class)
+        listener: beginClassOrMixinOrNamedMixinApplicationPrelude(class)
+        ensureIdentifier(class, classOrMixinDeclaration)
+          listener: handleIdentifier(C, classOrMixinDeclaration)
+        listener: handleNoTypeVariables(()
+        listener: beginClassDeclaration(class, null, null, null, null, null, null, null, null, C)
+        parseClass(C, class, class, null, C)
+          parsePrimaryConstructorOpt(C, null, false)
+            listener: beginPrimaryConstructor(()
+            parseFormalParameters(C, MemberKind.PrimaryConstructor)
+              parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+                listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+                parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                  parseMetadataStar(()
+                    listener: beginMetadataStar(final)
+                    listener: endMetadataStar(0)
+                  listener: beginFormalParameter(final, MemberKind.PrimaryConstructor, null, null, final)
+                  listener: handleIdentifier(a, typeReference)
+                  listener: handleNoTypeArguments(b)
+                  listener: handleType(a, null)
+                  ensureIdentifier(a, formalParameterDeclaration)
+                    listener: handleIdentifier(b, formalParameterDeclaration)
+                  listener: handleFormalParameterWithoutValue())
+                  listener: endFormalParameter(final, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+            listener: endPrimaryConstructor((, null, false, false)
+          parseClassHeaderOpt(), class, class)
+            parseClassExtendsOpt(), DeclarationHeaderKind.Class)
+              listener: handleNoType())
+              listener: handleClassExtends(null, 1)
+            parseClassWithClauseOpt())
+              listener: handleClassNoWithClause()
+            parseClassOrMixinOrEnumImplementsOpt())
+              listener: handleImplements(null, 0)
+            listener: handleClassHeader(class, class, null)
+          parseClassOrMixinOrExtensionBody(), DeclarationKind.Class, C)
+            listener: beginClassOrMixinOrExtensionBody(DeclarationKind.Class, {)
+            notEofOrType(CLOSE_CURLY_BRACKET, })
+            listener: endClassOrMixinOrExtensionBody(DeclarationKind.Class, 0, {, })
+          listener: endClassDeclaration(class, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(enum)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(enum, }, enum, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseEnum(enum, null, enum)
+        listener: beginUncategorizedTopLevelDeclaration(enum)
+        ensureIdentifier(enum, enumDeclaration)
+          listener: handleIdentifier(E, enumDeclaration)
+        listener: beginEnum(enum)
+        listener: handleNoTypeVariables(()
+        parsePrimaryConstructorOpt(E, null, false)
+          listener: beginPrimaryConstructor(()
+          parseFormalParameters(E, MemberKind.PrimaryConstructor)
+            parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+              listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+              listener: endFormalParameters(0, (, ), MemberKind.PrimaryConstructor)
+          listener: endPrimaryConstructor((, null, false, false)
+        parseEnumHeaderOpt(), enum)
+          parseEnumWithClauseOpt())
+            listener: handleEnumNoWithClause()
+          parseClassOrMixinOrEnumImplementsOpt())
+            listener: handleImplements(null, 0)
+        listener: handleEnumHeader(null, enum, {)
+        listener: beginEnumBody({)
+        listener: handleEnumElements(}, 0)
+        listener: endEnumBody({, })
+        listener: endEnum(enum, enum, {, 0, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(enum)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(enum, }, enum, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseEnum(enum, null, enum)
+        listener: beginUncategorizedTopLevelDeclaration(enum)
+        ensureIdentifier(enum, enumDeclaration)
+          listener: handleIdentifier(E, enumDeclaration)
+        listener: beginEnum(enum)
+        listener: handleNoTypeVariables(()
+        parsePrimaryConstructorOpt(E, null, false)
+          listener: beginPrimaryConstructor(()
+          parseFormalParameters(E, MemberKind.PrimaryConstructor)
+            parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+              listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+              parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                parseMetadataStar(()
+                  listener: beginMetadataStar(a)
+                  listener: endMetadataStar(0)
+                listener: beginFormalParameter(a, MemberKind.PrimaryConstructor, null, null, null)
+                listener: handleNoType(()
+                ensureIdentifier((, formalParameterDeclaration)
+                  listener: handleIdentifier(a, formalParameterDeclaration)
+                listener: handleFormalParameterWithoutValue())
+                listener: endFormalParameter(null, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+              listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+          listener: endPrimaryConstructor((, null, false, false)
+        parseEnumHeaderOpt(), enum)
+          parseEnumWithClauseOpt())
+            listener: handleEnumNoWithClause()
+          parseClassOrMixinOrEnumImplementsOpt())
+            listener: handleImplements(null, 0)
+        listener: handleEnumHeader(null, enum, {)
+        listener: beginEnumBody({)
+        listener: handleEnumElements(}, 0)
+        listener: endEnumBody({, })
+        listener: endEnum(enum, enum, {, 0, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(enum)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(enum, }, enum, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseEnum(enum, null, enum)
+        listener: beginUncategorizedTopLevelDeclaration(enum)
+        ensureIdentifier(enum, enumDeclaration)
+          listener: handleIdentifier(E, enumDeclaration)
+        listener: beginEnum(enum)
+        listener: handleNoTypeVariables(()
+        parsePrimaryConstructorOpt(E, null, false)
+          listener: beginPrimaryConstructor(()
+          parseFormalParameters(E, MemberKind.PrimaryConstructor)
+            parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+              listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+              parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                parseMetadataStar(()
+                  listener: beginMetadataStar(a)
+                  listener: endMetadataStar(0)
+                listener: beginFormalParameter(a, MemberKind.PrimaryConstructor, null, null, null)
+                listener: handleIdentifier(a, typeReference)
+                listener: handleNoTypeArguments(b)
+                listener: handleType(a, null)
+                ensureIdentifier(a, formalParameterDeclaration)
+                  listener: handleIdentifier(b, formalParameterDeclaration)
+                listener: handleFormalParameterWithoutValue())
+                listener: endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+              listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+          listener: endPrimaryConstructor((, null, false, false)
+        parseEnumHeaderOpt(), enum)
+          parseEnumWithClauseOpt())
+            listener: handleEnumNoWithClause()
+          parseClassOrMixinOrEnumImplementsOpt())
+            listener: handleImplements(null, 0)
+        listener: handleEnumHeader(null, enum, {)
+        listener: beginEnumBody({)
+        listener: handleEnumElements(}, 0)
+        listener: endEnumBody({, })
+        listener: endEnum(enum, enum, {, 0, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(enum)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(enum, }, enum, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseEnum(enum, null, enum)
+        listener: beginUncategorizedTopLevelDeclaration(enum)
+        ensureIdentifier(enum, enumDeclaration)
+          listener: handleIdentifier(E, enumDeclaration)
+        listener: beginEnum(enum)
+        listener: handleNoTypeVariables(()
+        parsePrimaryConstructorOpt(E, null, false)
+          listener: beginPrimaryConstructor(()
+          parseFormalParameters(E, MemberKind.PrimaryConstructor)
+            parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+              listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+              parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                parseMetadataStar(()
+                  listener: beginMetadataStar(var)
+                  listener: endMetadataStar(0)
+                listener: beginFormalParameter(var, MemberKind.PrimaryConstructor, null, null, var)
+                listener: handleNoType(var)
+                ensureIdentifier(var, formalParameterDeclaration)
+                  listener: handleIdentifier(a, formalParameterDeclaration)
+                listener: handleFormalParameterWithoutValue())
+                listener: endFormalParameter(var, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+              listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+          listener: endPrimaryConstructor((, null, false, false)
+        parseEnumHeaderOpt(), enum)
+          parseEnumWithClauseOpt())
+            listener: handleEnumNoWithClause()
+          parseClassOrMixinOrEnumImplementsOpt())
+            listener: handleImplements(null, 0)
+        listener: handleEnumHeader(null, enum, {)
+        listener: beginEnumBody({)
+        listener: handleEnumElements(}, 0)
+        listener: endEnumBody({, })
+        listener: endEnum(enum, enum, {, 0, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(enum)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(enum, }, enum, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseEnum(enum, null, enum)
+        listener: beginUncategorizedTopLevelDeclaration(enum)
+        ensureIdentifier(enum, enumDeclaration)
+          listener: handleIdentifier(E, enumDeclaration)
+        listener: beginEnum(enum)
+        listener: handleNoTypeVariables(()
+        parsePrimaryConstructorOpt(E, null, false)
+          listener: beginPrimaryConstructor(()
+          parseFormalParameters(E, MemberKind.PrimaryConstructor)
+            parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+              listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+              parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                parseMetadataStar(()
+                  listener: beginMetadataStar(final)
+                  listener: endMetadataStar(0)
+                listener: beginFormalParameter(final, MemberKind.PrimaryConstructor, null, null, final)
+                listener: handleNoType(final)
+                ensureIdentifier(final, formalParameterDeclaration)
+                  listener: handleIdentifier(a, formalParameterDeclaration)
+                listener: handleFormalParameterWithoutValue())
+                listener: endFormalParameter(final, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+              listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+          listener: endPrimaryConstructor((, null, false, false)
+        parseEnumHeaderOpt(), enum)
+          parseEnumWithClauseOpt())
+            listener: handleEnumNoWithClause()
+          parseClassOrMixinOrEnumImplementsOpt())
+            listener: handleImplements(null, 0)
+        listener: handleEnumHeader(null, enum, {)
+        listener: beginEnumBody({)
+        listener: handleEnumElements(}, 0)
+        listener: endEnumBody({, })
+        listener: endEnum(enum, enum, {, 0, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(enum)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(enum, }, enum, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseEnum(enum, null, enum)
+        listener: beginUncategorizedTopLevelDeclaration(enum)
+        ensureIdentifier(enum, enumDeclaration)
+          listener: handleIdentifier(E, enumDeclaration)
+        listener: beginEnum(enum)
+        listener: handleNoTypeVariables(()
+        parsePrimaryConstructorOpt(E, null, false)
+          listener: beginPrimaryConstructor(()
+          parseFormalParameters(E, MemberKind.PrimaryConstructor)
+            parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+              listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+              parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                parseMetadataStar(()
+                  listener: beginMetadataStar(var)
+                  listener: endMetadataStar(0)
+                listener: beginFormalParameter(var, MemberKind.PrimaryConstructor, null, null, var)
+                listener: handleIdentifier(a, typeReference)
+                listener: handleNoTypeArguments(b)
+                listener: handleType(a, null)
+                ensureIdentifier(a, formalParameterDeclaration)
+                  listener: handleIdentifier(b, formalParameterDeclaration)
+                listener: handleFormalParameterWithoutValue())
+                listener: endFormalParameter(var, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+              listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+          listener: endPrimaryConstructor((, null, false, false)
+        parseEnumHeaderOpt(), enum)
+          parseEnumWithClauseOpt())
+            listener: handleEnumNoWithClause()
+          parseClassOrMixinOrEnumImplementsOpt())
+            listener: handleImplements(null, 0)
+        listener: handleEnumHeader(null, enum, {)
+        listener: beginEnumBody({)
+        listener: handleEnumElements(}, 0)
+        listener: endEnumBody({, })
+        listener: endEnum(enum, enum, {, 0, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(enum)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(enum, }, enum, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseEnum(enum, null, enum)
+        listener: beginUncategorizedTopLevelDeclaration(enum)
+        ensureIdentifier(enum, enumDeclaration)
+          listener: handleIdentifier(E, enumDeclaration)
+        listener: beginEnum(enum)
+        listener: handleNoTypeVariables(()
+        parsePrimaryConstructorOpt(E, null, false)
+          listener: beginPrimaryConstructor(()
+          parseFormalParameters(E, MemberKind.PrimaryConstructor)
+            parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+              listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+              parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                parseMetadataStar(()
+                  listener: beginMetadataStar(final)
+                  listener: endMetadataStar(0)
+                listener: beginFormalParameter(final, MemberKind.PrimaryConstructor, null, null, final)
+                listener: handleIdentifier(a, typeReference)
+                listener: handleNoTypeArguments(b)
+                listener: handleType(a, null)
+                ensureIdentifier(a, formalParameterDeclaration)
+                  listener: handleIdentifier(b, formalParameterDeclaration)
+                listener: handleFormalParameterWithoutValue())
+                listener: endFormalParameter(final, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+              listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+          listener: endPrimaryConstructor((, null, false, false)
+        parseEnumHeaderOpt(), enum)
+          parseEnumWithClauseOpt())
+            listener: handleEnumNoWithClause()
+          parseClassOrMixinOrEnumImplementsOpt())
+            listener: handleImplements(null, 0)
+        listener: handleEnumHeader(null, enum, {)
+        listener: beginEnumBody({)
+        listener: handleEnumElements(}, 0)
+        listener: endEnumBody({, })
+        listener: endEnum(enum, enum, {, 0, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(extension)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(extension, }, extension, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseExtension(extension, null, extension)
+        listener: beginExtensionDeclarationPrelude(extension)
+        parseExtensionTypeDeclaration(extension, type, null, extension, type)
+          listener: handleNoTypeVariables(()
+          listener: beginExtensionTypeDeclaration(null, extension, ET)
+          parsePrimaryConstructorOpt(ET, null, true)
+            listener: beginPrimaryConstructor(()
+            parseFormalParameters(ET, MemberKind.PrimaryConstructor)
+              parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+                listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+                listener: endFormalParameters(0, (, ), MemberKind.PrimaryConstructor)
+            listener: endPrimaryConstructor((, null, false, true)
+          parseClassOrMixinOrEnumImplementsOpt())
+            listener: handleImplements(null, 0)
+          parseClassOrMixinOrExtensionBody(), DeclarationKind.ExtensionType, ET)
+            listener: beginClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, {)
+            notEofOrType(CLOSE_CURLY_BRACKET, })
+            listener: endClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, 0, {, })
+          listener: endExtensionTypeDeclaration(extension, null, extension, type, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(extension)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(extension, }, extension, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseExtension(extension, null, extension)
+        listener: beginExtensionDeclarationPrelude(extension)
+        parseExtensionTypeDeclaration(extension, type, null, extension, type)
+          listener: handleNoTypeVariables(()
+          listener: beginExtensionTypeDeclaration(null, extension, ET)
+          parsePrimaryConstructorOpt(ET, null, true)
+            listener: beginPrimaryConstructor(()
+            parseFormalParameters(ET, MemberKind.PrimaryConstructor)
+              parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+                listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+                parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                  parseMetadataStar(()
+                    listener: beginMetadataStar(a)
+                    listener: endMetadataStar(0)
+                  listener: beginFormalParameter(a, MemberKind.PrimaryConstructor, null, null, null)
+                  listener: handleNoType(()
+                  ensureIdentifier((, formalParameterDeclaration)
+                    listener: handleIdentifier(a, formalParameterDeclaration)
+                  listener: handleFormalParameterWithoutValue())
+                  listener: endFormalParameter(null, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+            listener: endPrimaryConstructor((, null, false, true)
+          parseClassOrMixinOrEnumImplementsOpt())
+            listener: handleImplements(null, 0)
+          parseClassOrMixinOrExtensionBody(), DeclarationKind.ExtensionType, ET)
+            listener: beginClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, {)
+            notEofOrType(CLOSE_CURLY_BRACKET, })
+            listener: endClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, 0, {, })
+          listener: endExtensionTypeDeclaration(extension, null, extension, type, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(extension)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(extension, }, extension, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseExtension(extension, null, extension)
+        listener: beginExtensionDeclarationPrelude(extension)
+        parseExtensionTypeDeclaration(extension, type, null, extension, type)
+          listener: handleNoTypeVariables(()
+          listener: beginExtensionTypeDeclaration(null, extension, ET)
+          parsePrimaryConstructorOpt(ET, null, true)
+            listener: beginPrimaryConstructor(()
+            parseFormalParameters(ET, MemberKind.PrimaryConstructor)
+              parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+                listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+                parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                  parseMetadataStar(()
+                    listener: beginMetadataStar(a)
+                    listener: endMetadataStar(0)
+                  listener: beginFormalParameter(a, MemberKind.PrimaryConstructor, null, null, null)
+                  listener: handleIdentifier(a, typeReference)
+                  listener: handleNoTypeArguments(b)
+                  listener: handleType(a, null)
+                  ensureIdentifier(a, formalParameterDeclaration)
+                    listener: handleIdentifier(b, formalParameterDeclaration)
+                  listener: handleFormalParameterWithoutValue())
+                  listener: endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+            listener: endPrimaryConstructor((, null, false, true)
+          parseClassOrMixinOrEnumImplementsOpt())
+            listener: handleImplements(null, 0)
+          parseClassOrMixinOrExtensionBody(), DeclarationKind.ExtensionType, ET)
+            listener: beginClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, {)
+            notEofOrType(CLOSE_CURLY_BRACKET, })
+            listener: endClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, 0, {, })
+          listener: endExtensionTypeDeclaration(extension, null, extension, type, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(extension)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(extension, }, extension, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseExtension(extension, null, extension)
+        listener: beginExtensionDeclarationPrelude(extension)
+        parseExtensionTypeDeclaration(extension, type, null, extension, type)
+          listener: handleNoTypeVariables(()
+          listener: beginExtensionTypeDeclaration(null, extension, ET)
+          parsePrimaryConstructorOpt(ET, null, true)
+            listener: beginPrimaryConstructor(()
+            parseFormalParameters(ET, MemberKind.PrimaryConstructor)
+              parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+                listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+                parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                  parseMetadataStar(()
+                    listener: beginMetadataStar(var)
+                    listener: endMetadataStar(0)
+                  listener: beginFormalParameter(var, MemberKind.PrimaryConstructor, null, null, var)
+                  listener: handleNoType(var)
+                  ensureIdentifier(var, formalParameterDeclaration)
+                    listener: handleIdentifier(a, formalParameterDeclaration)
+                  listener: handleFormalParameterWithoutValue())
+                  listener: endFormalParameter(var, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+            listener: endPrimaryConstructor((, null, false, true)
+          parseClassOrMixinOrEnumImplementsOpt())
+            listener: handleImplements(null, 0)
+          parseClassOrMixinOrExtensionBody(), DeclarationKind.ExtensionType, ET)
+            listener: beginClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, {)
+            notEofOrType(CLOSE_CURLY_BRACKET, })
+            listener: endClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, 0, {, })
+          listener: endExtensionTypeDeclaration(extension, null, extension, type, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(extension)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(extension, }, extension, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseExtension(extension, null, extension)
+        listener: beginExtensionDeclarationPrelude(extension)
+        parseExtensionTypeDeclaration(extension, type, null, extension, type)
+          listener: handleNoTypeVariables(()
+          listener: beginExtensionTypeDeclaration(null, extension, ET)
+          parsePrimaryConstructorOpt(ET, null, true)
+            listener: beginPrimaryConstructor(()
+            parseFormalParameters(ET, MemberKind.PrimaryConstructor)
+              parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+                listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+                parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                  parseMetadataStar(()
+                    listener: beginMetadataStar(final)
+                    listener: endMetadataStar(0)
+                  listener: beginFormalParameter(final, MemberKind.PrimaryConstructor, null, null, final)
+                  listener: handleNoType(final)
+                  ensureIdentifier(final, formalParameterDeclaration)
+                    listener: handleIdentifier(a, formalParameterDeclaration)
+                  listener: handleFormalParameterWithoutValue())
+                  listener: endFormalParameter(final, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+            listener: endPrimaryConstructor((, null, false, true)
+          parseClassOrMixinOrEnumImplementsOpt())
+            listener: handleImplements(null, 0)
+          parseClassOrMixinOrExtensionBody(), DeclarationKind.ExtensionType, ET)
+            listener: beginClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, {)
+            notEofOrType(CLOSE_CURLY_BRACKET, })
+            listener: endClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, 0, {, })
+          listener: endExtensionTypeDeclaration(extension, null, extension, type, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(extension)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(extension, }, extension, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseExtension(extension, null, extension)
+        listener: beginExtensionDeclarationPrelude(extension)
+        parseExtensionTypeDeclaration(extension, type, null, extension, type)
+          listener: handleNoTypeVariables(()
+          listener: beginExtensionTypeDeclaration(null, extension, ET)
+          parsePrimaryConstructorOpt(ET, null, true)
+            listener: beginPrimaryConstructor(()
+            parseFormalParameters(ET, MemberKind.PrimaryConstructor)
+              parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+                listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+                parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                  parseMetadataStar(()
+                    listener: beginMetadataStar(var)
+                    listener: endMetadataStar(0)
+                  listener: beginFormalParameter(var, MemberKind.PrimaryConstructor, null, null, var)
+                  listener: handleIdentifier(a, typeReference)
+                  listener: handleNoTypeArguments(b)
+                  listener: handleType(a, null)
+                  ensureIdentifier(a, formalParameterDeclaration)
+                    listener: handleIdentifier(b, formalParameterDeclaration)
+                  listener: handleFormalParameterWithoutValue())
+                  listener: endFormalParameter(var, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+            listener: endPrimaryConstructor((, null, false, true)
+          parseClassOrMixinOrEnumImplementsOpt())
+            listener: handleImplements(null, 0)
+          parseClassOrMixinOrExtensionBody(), DeclarationKind.ExtensionType, ET)
+            listener: beginClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, {)
+            notEofOrType(CLOSE_CURLY_BRACKET, })
+            listener: endClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, 0, {, })
+          listener: endExtensionTypeDeclaration(extension, null, extension, type, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(extension)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(extension, }, extension, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseExtension(extension, null, extension)
+        listener: beginExtensionDeclarationPrelude(extension)
+        parseExtensionTypeDeclaration(extension, type, null, extension, type)
+          listener: handleNoTypeVariables(()
+          listener: beginExtensionTypeDeclaration(null, extension, ET)
+          parsePrimaryConstructorOpt(ET, null, true)
+            listener: beginPrimaryConstructor(()
+            parseFormalParameters(ET, MemberKind.PrimaryConstructor)
+              parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+                listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+                parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                  parseMetadataStar(()
+                    listener: beginMetadataStar(final)
+                    listener: endMetadataStar(0)
+                  listener: beginFormalParameter(final, MemberKind.PrimaryConstructor, null, null, final)
+                  listener: handleIdentifier(a, typeReference)
+                  listener: handleNoTypeArguments(b)
+                  listener: handleType(a, null)
+                  ensureIdentifier(a, formalParameterDeclaration)
+                    listener: handleIdentifier(b, formalParameterDeclaration)
+                  listener: handleFormalParameterWithoutValue())
+                  listener: endFormalParameter(final, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+            listener: endPrimaryConstructor((, null, false, true)
+          parseClassOrMixinOrEnumImplementsOpt())
+            listener: handleImplements(null, 0)
+          parseClassOrMixinOrExtensionBody(), DeclarationKind.ExtensionType, ET)
+            listener: beginClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, {)
+            notEofOrType(CLOSE_CURLY_BRACKET, })
+            listener: endClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, 0, {, })
+          listener: endExtensionTypeDeclaration(extension, null, extension, type, })
+  listener: endTopLevelDeclaration(})
+  reportAllErrorTokens(class)
+  listener: endCompilationUnit(21, )

pkg/front_end/parser_testcases/declaring_constructors/declaring_parameter.dart.parser.expect

@@ -0,0 +1,49 @@
+class C() {}
+class C(a) {}
+class C(a b) {}
+class C(var a) {}
+class C(final a) {}
+class C(var a b) {}
+class C(final a b) {}
+
+enum E() {}
+enum E(a) {}
+enum E(a b) {}
+enum E(var a) {}
+enum E(final a) {}
+enum E(var a b) {}
+enum E(final a b) {}
+
+extension type ET() {}
+extension type ET(a) {}
+extension type ET(a b) {}
+extension type ET(var a) {}
+extension type ET(final a) {}
+extension type ET(var a b) {}
+extension type ET(final a b) {}
+
+
+class[KeywordToken] C[StringToken]([BeginToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+class[KeywordToken] C[StringToken]([BeginToken]a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+class[KeywordToken] C[StringToken]([BeginToken]a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+class[KeywordToken] C[StringToken]([BeginToken]var[KeywordToken] a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+class[KeywordToken] C[StringToken]([BeginToken]final[KeywordToken] a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+class[KeywordToken] C[StringToken]([BeginToken]var[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+class[KeywordToken] C[StringToken]([BeginToken]final[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+
+enum[KeywordToken] E[StringToken]([BeginToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+enum[KeywordToken] E[StringToken]([BeginToken]a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+enum[KeywordToken] E[StringToken]([BeginToken]a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+enum[KeywordToken] E[StringToken]([BeginToken]var[KeywordToken] a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+enum[KeywordToken] E[StringToken]([BeginToken]final[KeywordToken] a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+enum[KeywordToken] E[StringToken]([BeginToken]var[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+enum[KeywordToken] E[StringToken]([BeginToken]final[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+
+extension[KeywordToken] type[StringToken] ET[StringToken]([BeginToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+extension[KeywordToken] type[StringToken] ET[StringToken]([BeginToken]a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+extension[KeywordToken] type[StringToken] ET[StringToken]([BeginToken]a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+extension[KeywordToken] type[StringToken] ET[StringToken]([BeginToken]var[KeywordToken] a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+extension[KeywordToken] type[StringToken] ET[StringToken]([BeginToken]final[KeywordToken] a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+extension[KeywordToken] type[StringToken] ET[StringToken]([BeginToken]var[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+extension[KeywordToken] type[StringToken] ET[StringToken]([BeginToken]final[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+[SimpleToken]

pkg/front_end/parser_testcases/declaring_constructors/declaring_parameter.dart.scanner.expect

@@ -0,0 +1,49 @@
+class C() {}
+class C(a) {}
+class C(a b) {}
+class C(var a) {}
+class C(final a) {}
+class C(var a b) {}
+class C(final a b) {}
+
+enum E() {}
+enum E(a) {}
+enum E(a b) {}
+enum E(var a) {}
+enum E(final a) {}
+enum E(var a b) {}
+enum E(final a b) {}
+
+extension type ET() {}
+extension type ET(a) {}
+extension type ET(a b) {}
+extension type ET(var a) {}
+extension type ET(final a) {}
+extension type ET(var a b) {}
+extension type ET(final a b) {}
+
+
+class[KeywordToken] C[StringToken]([BeginToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+class[KeywordToken] C[StringToken]([BeginToken]a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+class[KeywordToken] C[StringToken]([BeginToken]a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+class[KeywordToken] C[StringToken]([BeginToken]var[KeywordToken] a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+class[KeywordToken] C[StringToken]([BeginToken]final[KeywordToken] a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+class[KeywordToken] C[StringToken]([BeginToken]var[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+class[KeywordToken] C[StringToken]([BeginToken]final[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+
+enum[KeywordToken] E[StringToken]([BeginToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+enum[KeywordToken] E[StringToken]([BeginToken]a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+enum[KeywordToken] E[StringToken]([BeginToken]a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+enum[KeywordToken] E[StringToken]([BeginToken]var[KeywordToken] a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+enum[KeywordToken] E[StringToken]([BeginToken]final[KeywordToken] a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+enum[KeywordToken] E[StringToken]([BeginToken]var[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+enum[KeywordToken] E[StringToken]([BeginToken]final[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+
+extension[KeywordToken] type[StringToken] ET[StringToken]([BeginToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+extension[KeywordToken] type[StringToken] ET[StringToken]([BeginToken]a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+extension[KeywordToken] type[StringToken] ET[StringToken]([BeginToken]a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+extension[KeywordToken] type[StringToken] ET[StringToken]([BeginToken]var[KeywordToken] a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+extension[KeywordToken] type[StringToken] ET[StringToken]([BeginToken]final[KeywordToken] a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+extension[KeywordToken] type[StringToken] ET[StringToken]([BeginToken]var[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+extension[KeywordToken] type[StringToken] ET[StringToken]([BeginToken]final[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+[SimpleToken]

pkg/front_end/parser_testcases/declaring_constructors/declaring_parameter_error.dart

@@ -0,0 +1,30 @@
+m(var a b) {}
+
+class C {
+  C(var a b) {}
+}
+
+class C(covariant a) {}
+class C(covariant a b) {}
+class C(covariant var a) {}
+class C(covariant final a) {}
+class C(covariant var a b) {}
+class C(covariant final a b) {}
+
+enum E(covariant a) {}
+enum E(covariant a b) {}
+enum E(covariant var a) {}
+enum E(covariant final a) {}
+enum E(covariant var a b) {}
+enum E(covariant final a b) {}
+
+extension type ET(int i) {
+  ET(var a b) {}
+}
+
+extension type ET(covariant a) {}
+extension type ET(covariant a b) {}
+extension type ET(covariant var a) {}
+extension type ET(covariant final a) {}
+extension type ET(covariant var a b) {}
+extension type ET(covariant final a b) {}

pkg/front_end/parser_testcases/declaring_constructors/declaring_parameter_error.dart.expect

@@ -0,0 +1,669 @@
+Problems reported:
+
+parser/declaring_constructors/declaring_parameter_error:1:3: Variables can't be declared using both 'var' and a type name.
+m(var a b) {}
+  ^^^
+
+parser/declaring_constructors/declaring_parameter_error:4:5: Variables can't be declared using both 'var' and a type name.
+  C(var a b) {}
+    ^^^
+
+parser/declaring_constructors/declaring_parameter_error:7:9: Can't have modifier 'covariant' in a primary constructor.
+class C(covariant a) {}
+        ^^^^^^^^^
+
+parser/declaring_constructors/declaring_parameter_error:8:9: Can't have modifier 'covariant' in a primary constructor.
+class C(covariant a b) {}
+        ^^^^^^^^^
+
+parser/declaring_constructors/declaring_parameter_error:9:9: Can't have modifier 'covariant' in a primary constructor.
+class C(covariant var a) {}
+        ^^^^^^^^^
+
+parser/declaring_constructors/declaring_parameter_error:10:9: Can't have modifier 'covariant' in a primary constructor.
+class C(covariant final a) {}
+        ^^^^^^^^^
+
+parser/declaring_constructors/declaring_parameter_error:11:9: Can't have modifier 'covariant' in a primary constructor.
+class C(covariant var a b) {}
+        ^^^^^^^^^
+
+parser/declaring_constructors/declaring_parameter_error:12:9: Can't have modifier 'covariant' in a primary constructor.
+class C(covariant final a b) {}
+        ^^^^^^^^^
+
+parser/declaring_constructors/declaring_parameter_error:14:8: Can't have modifier 'covariant' in a primary constructor.
+enum E(covariant a) {}
+       ^^^^^^^^^
+
+parser/declaring_constructors/declaring_parameter_error:15:8: Can't have modifier 'covariant' in a primary constructor.
+enum E(covariant a b) {}
+       ^^^^^^^^^
+
+parser/declaring_constructors/declaring_parameter_error:16:8: Can't have modifier 'covariant' in a primary constructor.
+enum E(covariant var a) {}
+       ^^^^^^^^^
+
+parser/declaring_constructors/declaring_parameter_error:17:8: Can't have modifier 'covariant' in a primary constructor.
+enum E(covariant final a) {}
+       ^^^^^^^^^
+
+parser/declaring_constructors/declaring_parameter_error:18:8: Can't have modifier 'covariant' in a primary constructor.
+enum E(covariant var a b) {}
+       ^^^^^^^^^
+
+parser/declaring_constructors/declaring_parameter_error:19:8: Can't have modifier 'covariant' in a primary constructor.
+enum E(covariant final a b) {}
+       ^^^^^^^^^
+
+parser/declaring_constructors/declaring_parameter_error:22:6: Variables can't be declared using both 'var' and a type name.
+  ET(var a b) {}
+     ^^^
+
+parser/declaring_constructors/declaring_parameter_error:25:19: Can't have modifier 'covariant' in a primary constructor.
+extension type ET(covariant a) {}
+                  ^^^^^^^^^
+
+parser/declaring_constructors/declaring_parameter_error:26:19: Can't have modifier 'covariant' in a primary constructor.
+extension type ET(covariant a b) {}
+                  ^^^^^^^^^
+
+parser/declaring_constructors/declaring_parameter_error:27:19: Can't have modifier 'covariant' in a primary constructor.
+extension type ET(covariant var a) {}
+                  ^^^^^^^^^
+
+parser/declaring_constructors/declaring_parameter_error:28:19: Can't have modifier 'covariant' in a primary constructor.
+extension type ET(covariant final a) {}
+                  ^^^^^^^^^
+
+parser/declaring_constructors/declaring_parameter_error:29:19: Can't have modifier 'covariant' in a primary constructor.
+extension type ET(covariant var a b) {}
+                  ^^^^^^^^^
+
+parser/declaring_constructors/declaring_parameter_error:30:19: Can't have modifier 'covariant' in a primary constructor.
+extension type ET(covariant final a b) {}
+                  ^^^^^^^^^
+
+beginCompilationUnit(m)
+  beginMetadataStar(m)
+  endMetadataStar(0)
+  beginTopLevelMember(m)
+    beginTopLevelMethod(, null, null)
+      handleNoType()
+      handleIdentifier(m, topLevelFunctionDeclaration)
+      handleNoTypeVariables(()
+      beginFormalParameters((, MemberKind.TopLevelMethod)
+        beginMetadataStar(var)
+        endMetadataStar(0)
+        beginFormalParameter(var, MemberKind.TopLevelMethod, null, null, var)
+          handleRecoverableError(TypeAfterVar, var, var)
+          handleIdentifier(a, typeReference)
+          handleNoTypeArguments(b)
+          handleType(a, null)
+          handleIdentifier(b, formalParameterDeclaration)
+          handleFormalParameterWithoutValue())
+        endFormalParameter(var, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+      endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
+      handleAsyncModifier(null, null)
+      beginBlockFunctionBody({)
+      endBlockFunctionBody(0, {, })
+    endTopLevelMethod(m, null, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(class)
+  endMetadataStar(0)
+  beginClassOrMixinOrNamedMixinApplicationPrelude(class)
+    handleIdentifier(C, classOrMixinDeclaration)
+    handleNoTypeVariables({)
+    beginClassDeclaration(class, null, null, null, null, null, null, null, null, C)
+      handleNoPrimaryConstructor(C, null, false)
+      handleNoType(C)
+      handleClassExtends(null, 1)
+      handleClassNoWithClause()
+      handleImplements(null, 0)
+      handleClassHeader(class, class, null)
+      beginClassOrMixinOrExtensionBody(DeclarationKind.Class, {)
+        beginMetadataStar(C)
+        endMetadataStar(0)
+        beginMember()
+          beginMethod(DeclarationKind.Class, null, null, null, null, null, null, C, C)
+            handleNoType({)
+            handleIdentifier(C, methodDeclaration)
+            handleNoTypeVariables(()
+            beginFormalParameters((, MemberKind.NonStaticMethod)
+              beginMetadataStar(var)
+              endMetadataStar(0)
+              beginFormalParameter(var, MemberKind.NonStaticMethod, null, null, var)
+                handleRecoverableError(TypeAfterVar, var, var)
+                handleIdentifier(a, typeReference)
+                handleNoTypeArguments(b)
+                handleType(a, null)
+                handleIdentifier(b, formalParameterDeclaration)
+                handleFormalParameterWithoutValue())
+              endFormalParameter(var, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+            endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
+            handleNoInitializers()
+            handleAsyncModifier(null, null)
+            beginBlockFunctionBody({)
+            endBlockFunctionBody(0, {, })
+          endClassConstructor(null, C, (, null, })
+        endMember()
+      endClassOrMixinOrExtensionBody(DeclarationKind.Class, 1, {, })
+    endClassDeclaration(class, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(class)
+  endMetadataStar(0)
+  beginClassOrMixinOrNamedMixinApplicationPrelude(class)
+    handleIdentifier(C, classOrMixinDeclaration)
+    handleNoTypeVariables(()
+    beginClassDeclaration(class, null, null, null, null, null, null, null, null, C)
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(covariant)
+          endMetadataStar(0)
+          handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+          beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, null)
+            handleNoType(covariant)
+            handleIdentifier(a, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(null, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, false)
+      handleNoType())
+      handleClassExtends(null, 1)
+      handleClassNoWithClause()
+      handleImplements(null, 0)
+      handleClassHeader(class, class, null)
+      beginClassOrMixinOrExtensionBody(DeclarationKind.Class, {)
+      endClassOrMixinOrExtensionBody(DeclarationKind.Class, 0, {, })
+    endClassDeclaration(class, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(class)
+  endMetadataStar(0)
+  beginClassOrMixinOrNamedMixinApplicationPrelude(class)
+    handleIdentifier(C, classOrMixinDeclaration)
+    handleNoTypeVariables(()
+    beginClassDeclaration(class, null, null, null, null, null, null, null, null, C)
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(covariant)
+          endMetadataStar(0)
+          handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+          beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, null)
+            handleIdentifier(a, typeReference)
+            handleNoTypeArguments(b)
+            handleType(a, null)
+            handleIdentifier(b, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, false)
+      handleNoType())
+      handleClassExtends(null, 1)
+      handleClassNoWithClause()
+      handleImplements(null, 0)
+      handleClassHeader(class, class, null)
+      beginClassOrMixinOrExtensionBody(DeclarationKind.Class, {)
+      endClassOrMixinOrExtensionBody(DeclarationKind.Class, 0, {, })
+    endClassDeclaration(class, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(class)
+  endMetadataStar(0)
+  beginClassOrMixinOrNamedMixinApplicationPrelude(class)
+    handleIdentifier(C, classOrMixinDeclaration)
+    handleNoTypeVariables(()
+    beginClassDeclaration(class, null, null, null, null, null, null, null, null, C)
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(covariant)
+          endMetadataStar(0)
+          handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+          beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, var)
+            handleNoType(var)
+            handleIdentifier(a, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(var, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, false)
+      handleNoType())
+      handleClassExtends(null, 1)
+      handleClassNoWithClause()
+      handleImplements(null, 0)
+      handleClassHeader(class, class, null)
+      beginClassOrMixinOrExtensionBody(DeclarationKind.Class, {)
+      endClassOrMixinOrExtensionBody(DeclarationKind.Class, 0, {, })
+    endClassDeclaration(class, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(class)
+  endMetadataStar(0)
+  beginClassOrMixinOrNamedMixinApplicationPrelude(class)
+    handleIdentifier(C, classOrMixinDeclaration)
+    handleNoTypeVariables(()
+    beginClassDeclaration(class, null, null, null, null, null, null, null, null, C)
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(covariant)
+          endMetadataStar(0)
+          handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+          beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, final)
+            handleNoType(final)
+            handleIdentifier(a, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(final, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, false)
+      handleNoType())
+      handleClassExtends(null, 1)
+      handleClassNoWithClause()
+      handleImplements(null, 0)
+      handleClassHeader(class, class, null)
+      beginClassOrMixinOrExtensionBody(DeclarationKind.Class, {)
+      endClassOrMixinOrExtensionBody(DeclarationKind.Class, 0, {, })
+    endClassDeclaration(class, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(class)
+  endMetadataStar(0)
+  beginClassOrMixinOrNamedMixinApplicationPrelude(class)
+    handleIdentifier(C, classOrMixinDeclaration)
+    handleNoTypeVariables(()
+    beginClassDeclaration(class, null, null, null, null, null, null, null, null, C)
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(covariant)
+          endMetadataStar(0)
+          handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+          beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, var)
+            handleIdentifier(a, typeReference)
+            handleNoTypeArguments(b)
+            handleType(a, null)
+            handleIdentifier(b, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(var, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, false)
+      handleNoType())
+      handleClassExtends(null, 1)
+      handleClassNoWithClause()
+      handleImplements(null, 0)
+      handleClassHeader(class, class, null)
+      beginClassOrMixinOrExtensionBody(DeclarationKind.Class, {)
+      endClassOrMixinOrExtensionBody(DeclarationKind.Class, 0, {, })
+    endClassDeclaration(class, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(class)
+  endMetadataStar(0)
+  beginClassOrMixinOrNamedMixinApplicationPrelude(class)
+    handleIdentifier(C, classOrMixinDeclaration)
+    handleNoTypeVariables(()
+    beginClassDeclaration(class, null, null, null, null, null, null, null, null, C)
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(covariant)
+          endMetadataStar(0)
+          handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+          beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, final)
+            handleIdentifier(a, typeReference)
+            handleNoTypeArguments(b)
+            handleType(a, null)
+            handleIdentifier(b, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(final, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, false)
+      handleNoType())
+      handleClassExtends(null, 1)
+      handleClassNoWithClause()
+      handleImplements(null, 0)
+      handleClassHeader(class, class, null)
+      beginClassOrMixinOrExtensionBody(DeclarationKind.Class, {)
+      endClassOrMixinOrExtensionBody(DeclarationKind.Class, 0, {, })
+    endClassDeclaration(class, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(enum)
+  endMetadataStar(0)
+  beginUncategorizedTopLevelDeclaration(enum)
+    handleIdentifier(E, enumDeclaration)
+    beginEnum(enum)
+      handleNoTypeVariables(()
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(covariant)
+          endMetadataStar(0)
+          handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+          beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, null)
+            handleNoType(covariant)
+            handleIdentifier(a, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(null, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, false)
+      handleEnumNoWithClause()
+      handleImplements(null, 0)
+      handleEnumHeader(null, enum, {)
+      beginEnumBody({)
+        handleEnumElements(}, 0)
+      endEnumBody({, })
+    endEnum(enum, enum, {, 0, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(enum)
+  endMetadataStar(0)
+  beginUncategorizedTopLevelDeclaration(enum)
+    handleIdentifier(E, enumDeclaration)
+    beginEnum(enum)
+      handleNoTypeVariables(()
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(covariant)
+          endMetadataStar(0)
+          handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+          beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, null)
+            handleIdentifier(a, typeReference)
+            handleNoTypeArguments(b)
+            handleType(a, null)
+            handleIdentifier(b, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, false)
+      handleEnumNoWithClause()
+      handleImplements(null, 0)
+      handleEnumHeader(null, enum, {)
+      beginEnumBody({)
+        handleEnumElements(}, 0)
+      endEnumBody({, })
+    endEnum(enum, enum, {, 0, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(enum)
+  endMetadataStar(0)
+  beginUncategorizedTopLevelDeclaration(enum)
+    handleIdentifier(E, enumDeclaration)
+    beginEnum(enum)
+      handleNoTypeVariables(()
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(covariant)
+          endMetadataStar(0)
+          handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+          beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, var)
+            handleNoType(var)
+            handleIdentifier(a, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(var, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, false)
+      handleEnumNoWithClause()
+      handleImplements(null, 0)
+      handleEnumHeader(null, enum, {)
+      beginEnumBody({)
+        handleEnumElements(}, 0)
+      endEnumBody({, })
+    endEnum(enum, enum, {, 0, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(enum)
+  endMetadataStar(0)
+  beginUncategorizedTopLevelDeclaration(enum)
+    handleIdentifier(E, enumDeclaration)
+    beginEnum(enum)
+      handleNoTypeVariables(()
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(covariant)
+          endMetadataStar(0)
+          handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+          beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, final)
+            handleNoType(final)
+            handleIdentifier(a, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(final, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, false)
+      handleEnumNoWithClause()
+      handleImplements(null, 0)
+      handleEnumHeader(null, enum, {)
+      beginEnumBody({)
+        handleEnumElements(}, 0)
+      endEnumBody({, })
+    endEnum(enum, enum, {, 0, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(enum)
+  endMetadataStar(0)
+  beginUncategorizedTopLevelDeclaration(enum)
+    handleIdentifier(E, enumDeclaration)
+    beginEnum(enum)
+      handleNoTypeVariables(()
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(covariant)
+          endMetadataStar(0)
+          handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+          beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, var)
+            handleIdentifier(a, typeReference)
+            handleNoTypeArguments(b)
+            handleType(a, null)
+            handleIdentifier(b, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(var, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, false)
+      handleEnumNoWithClause()
+      handleImplements(null, 0)
+      handleEnumHeader(null, enum, {)
+      beginEnumBody({)
+        handleEnumElements(}, 0)
+      endEnumBody({, })
+    endEnum(enum, enum, {, 0, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(enum)
+  endMetadataStar(0)
+  beginUncategorizedTopLevelDeclaration(enum)
+    handleIdentifier(E, enumDeclaration)
+    beginEnum(enum)
+      handleNoTypeVariables(()
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(covariant)
+          endMetadataStar(0)
+          handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+          beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, final)
+            handleIdentifier(a, typeReference)
+            handleNoTypeArguments(b)
+            handleType(a, null)
+            handleIdentifier(b, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(final, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, false)
+      handleEnumNoWithClause()
+      handleImplements(null, 0)
+      handleEnumHeader(null, enum, {)
+      beginEnumBody({)
+        handleEnumElements(}, 0)
+      endEnumBody({, })
+    endEnum(enum, enum, {, 0, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(extension)
+  endMetadataStar(0)
+  beginExtensionDeclarationPrelude(extension)
+    handleNoTypeVariables(()
+    beginExtensionTypeDeclaration(null, extension, ET)
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(int)
+          endMetadataStar(0)
+          beginFormalParameter(int, MemberKind.PrimaryConstructor, null, null, null)
+            handleIdentifier(int, typeReference)
+            handleNoTypeArguments(i)
+            handleType(int, null)
+            handleIdentifier(i, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(null, null, null, null, i, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, true)
+      handleImplements(null, 0)
+      beginClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, {)
+        beginMetadataStar(ET)
+        endMetadataStar(0)
+        beginMember()
+          beginMethod(DeclarationKind.ExtensionType, null, null, null, null, null, null, ET, ET)
+            handleNoType({)
+            handleIdentifier(ET, methodDeclaration)
+            handleNoTypeVariables(()
+            beginFormalParameters((, MemberKind.ExtensionTypeNonStaticMethod)
+              beginMetadataStar(var)
+              endMetadataStar(0)
+              beginFormalParameter(var, MemberKind.ExtensionTypeNonStaticMethod, null, null, var)
+                handleRecoverableError(TypeAfterVar, var, var)
+                handleIdentifier(a, typeReference)
+                handleNoTypeArguments(b)
+                handleType(a, null)
+                handleIdentifier(b, formalParameterDeclaration)
+                handleFormalParameterWithoutValue())
+              endFormalParameter(var, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.ExtensionTypeNonStaticMethod)
+            endFormalParameters(1, (, ), MemberKind.ExtensionTypeNonStaticMethod)
+            handleNoInitializers()
+            handleAsyncModifier(null, null)
+            beginBlockFunctionBody({)
+            endBlockFunctionBody(0, {, })
+          endExtensionTypeConstructor(null, ET, (, null, })
+        endMember()
+      endClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, 1, {, })
+    endExtensionTypeDeclaration(extension, null, extension, type, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(extension)
+  endMetadataStar(0)
+  beginExtensionDeclarationPrelude(extension)
+    handleNoTypeVariables(()
+    beginExtensionTypeDeclaration(null, extension, ET)
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(covariant)
+          endMetadataStar(0)
+          handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+          beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, null)
+            handleNoType(covariant)
+            handleIdentifier(a, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(null, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, true)
+      handleImplements(null, 0)
+      beginClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, {)
+      endClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, 0, {, })
+    endExtensionTypeDeclaration(extension, null, extension, type, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(extension)
+  endMetadataStar(0)
+  beginExtensionDeclarationPrelude(extension)
+    handleNoTypeVariables(()
+    beginExtensionTypeDeclaration(null, extension, ET)
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(covariant)
+          endMetadataStar(0)
+          handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+          beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, null)
+            handleIdentifier(a, typeReference)
+            handleNoTypeArguments(b)
+            handleType(a, null)
+            handleIdentifier(b, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, true)
+      handleImplements(null, 0)
+      beginClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, {)
+      endClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, 0, {, })
+    endExtensionTypeDeclaration(extension, null, extension, type, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(extension)
+  endMetadataStar(0)
+  beginExtensionDeclarationPrelude(extension)
+    handleNoTypeVariables(()
+    beginExtensionTypeDeclaration(null, extension, ET)
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(covariant)
+          endMetadataStar(0)
+          handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+          beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, var)
+            handleNoType(var)
+            handleIdentifier(a, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(var, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, true)
+      handleImplements(null, 0)
+      beginClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, {)
+      endClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, 0, {, })
+    endExtensionTypeDeclaration(extension, null, extension, type, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(extension)
+  endMetadataStar(0)
+  beginExtensionDeclarationPrelude(extension)
+    handleNoTypeVariables(()
+    beginExtensionTypeDeclaration(null, extension, ET)
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(covariant)
+          endMetadataStar(0)
+          handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+          beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, final)
+            handleNoType(final)
+            handleIdentifier(a, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(final, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, true)
+      handleImplements(null, 0)
+      beginClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, {)
+      endClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, 0, {, })
+    endExtensionTypeDeclaration(extension, null, extension, type, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(extension)
+  endMetadataStar(0)
+  beginExtensionDeclarationPrelude(extension)
+    handleNoTypeVariables(()
+    beginExtensionTypeDeclaration(null, extension, ET)
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(covariant)
+          endMetadataStar(0)
+          handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+          beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, var)
+            handleIdentifier(a, typeReference)
+            handleNoTypeArguments(b)
+            handleType(a, null)
+            handleIdentifier(b, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(var, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, true)
+      handleImplements(null, 0)
+      beginClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, {)
+      endClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, 0, {, })
+    endExtensionTypeDeclaration(extension, null, extension, type, })
+  endTopLevelDeclaration(})
+  beginMetadataStar(extension)
+  endMetadataStar(0)
+  beginExtensionDeclarationPrelude(extension)
+    handleNoTypeVariables(()
+    beginExtensionTypeDeclaration(null, extension, ET)
+      beginPrimaryConstructor(()
+        beginFormalParameters((, MemberKind.PrimaryConstructor)
+          beginMetadataStar(covariant)
+          endMetadataStar(0)
+          handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+          beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, final)
+            handleIdentifier(a, typeReference)
+            handleNoTypeArguments(b)
+            handleType(a, null)
+            handleIdentifier(b, formalParameterDeclaration)
+            handleFormalParameterWithoutValue())
+          endFormalParameter(final, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+        endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+      endPrimaryConstructor((, null, false, true)
+      handleImplements(null, 0)
+      beginClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, {)
+      endClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, 0, {, })
+    endExtensionTypeDeclaration(extension, null, extension, type, })
+  endTopLevelDeclaration(})
+endCompilationUnit(21, )

pkg/front_end/parser_testcases/declaring_constructors/declaring_parameter_error.dart.intertwined.expect

@@ -0,0 +1,968 @@
+parseUnit(m)
+  skipErrorTokens(m)
+  listener: beginCompilationUnit(m)
+  syntheticPreviousToken(m)
+  parseTopLevelDeclarationImpl(, DirectiveContext(DirectiveState.Unknown))
+    parseMetadataStar()
+      listener: beginMetadataStar(m)
+      listener: endMetadataStar(0)
+    parseTopLevelMemberImpl()
+      listener: beginTopLevelMember(m)
+      isReservedKeyword(()
+      parseTopLevelMethod(, null, null, , NoType(), null, m, false)
+        listener: beginTopLevelMethod(, null, null)
+        listener: handleNoType()
+        ensureIdentifierPotentiallyRecovered(, topLevelFunctionDeclaration, false)
+          listener: handleIdentifier(m, topLevelFunctionDeclaration)
+        parseMethodTypeVar(m)
+          listener: handleNoTypeVariables(()
+        parseGetterOrFormalParameters(m, m, false, MemberKind.TopLevelMethod)
+          parseFormalParameters(m, MemberKind.TopLevelMethod)
+            parseFormalParametersRest((, MemberKind.TopLevelMethod)
+              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
+              parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                parseMetadataStar(()
+                  listener: beginMetadataStar(var)
+                  listener: endMetadataStar(0)
+                listener: beginFormalParameter(var, MemberKind.TopLevelMethod, null, null, var)
+                reportRecoverableError(var, TypeAfterVar)
+                  listener: handleRecoverableError(TypeAfterVar, var, var)
+                listener: handleIdentifier(a, typeReference)
+                listener: handleNoTypeArguments(b)
+                listener: handleType(a, null)
+                ensureIdentifier(a, formalParameterDeclaration)
+                  listener: handleIdentifier(b, formalParameterDeclaration)
+                listener: handleFormalParameterWithoutValue())
+                listener: endFormalParameter(var, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
+        parseAsyncModifierOpt())
+          listener: handleAsyncModifier(null, null)
+          inPlainSync()
+        parseFunctionBody(), false, false)
+          listener: beginBlockFunctionBody({)
+          notEofOrType(CLOSE_CURLY_BRACKET, })
+          listener: endBlockFunctionBody(0, {, })
+        listener: endTopLevelMethod(m, null, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(class)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(class, }, class, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseClassOrNamedMixinApplication(class, null, null, null, null, null, null, null, null, class)
+        listener: beginClassOrMixinOrNamedMixinApplicationPrelude(class)
+        ensureIdentifier(class, classOrMixinDeclaration)
+          listener: handleIdentifier(C, classOrMixinDeclaration)
+        listener: handleNoTypeVariables({)
+        listener: beginClassDeclaration(class, null, null, null, null, null, null, null, null, C)
+        parseClass(C, class, class, null, C)
+          parsePrimaryConstructorOpt(C, null, false)
+            listener: handleNoPrimaryConstructor(C, null, false)
+          parseClassHeaderOpt(C, class, class)
+            parseClassExtendsOpt(C, DeclarationHeaderKind.Class)
+              listener: handleNoType(C)
+              listener: handleClassExtends(null, 1)
+            parseClassWithClauseOpt(C)
+              listener: handleClassNoWithClause()
+            parseClassOrMixinOrEnumImplementsOpt(C)
+              listener: handleImplements(null, 0)
+            listener: handleClassHeader(class, class, null)
+          parseClassOrMixinOrExtensionBody(C, DeclarationKind.Class, C)
+            listener: beginClassOrMixinOrExtensionBody(DeclarationKind.Class, {)
+            notEofOrType(CLOSE_CURLY_BRACKET, C)
+            parseClassOrMixinOrExtensionOrEnumMemberImpl({, DeclarationKind.Class, C)
+              parseMetadataStar({)
+                listener: beginMetadataStar(C)
+                listener: endMetadataStar(0)
+              listener: beginMember()
+              isReservedKeyword(()
+              parseMethod({, null, null, null, null, null, null, null, {, NoType(), null, C, DeclarationKind.Class, C, false)
+                listener: beginMethod(DeclarationKind.Class, null, null, null, null, null, null, C, C)
+                listener: handleNoType({)
+                ensureIdentifierPotentiallyRecovered({, methodDeclaration, false)
+                  listener: handleIdentifier(C, methodDeclaration)
+                parseQualifiedRestOpt(C, methodDeclarationContinuation)
+                parseMethodTypeVar(C)
+                  listener: handleNoTypeVariables(()
+                parseGetterOrFormalParameters(C, C, false, MemberKind.NonStaticMethod)
+                  parseFormalParameters(C, MemberKind.NonStaticMethod)
+                    parseFormalParametersRest((, MemberKind.NonStaticMethod)
+                      listener: beginFormalParameters((, MemberKind.NonStaticMethod)
+                      parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        parseMetadataStar(()
+                          listener: beginMetadataStar(var)
+                          listener: endMetadataStar(0)
+                        listener: beginFormalParameter(var, MemberKind.NonStaticMethod, null, null, var)
+                        reportRecoverableError(var, TypeAfterVar)
+                          listener: handleRecoverableError(TypeAfterVar, var, var)
+                        listener: handleIdentifier(a, typeReference)
+                        listener: handleNoTypeArguments(b)
+                        listener: handleType(a, null)
+                        ensureIdentifier(a, formalParameterDeclaration)
+                          listener: handleIdentifier(b, formalParameterDeclaration)
+                        listener: handleFormalParameterWithoutValue())
+                        listener: endFormalParameter(var, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                      listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
+                parseInitializersOpt())
+                  listener: handleNoInitializers()
+                parseAsyncModifierOpt())
+                  listener: handleAsyncModifier(null, null)
+                  inPlainSync()
+                inPlainSync()
+                parseFunctionBody(), false, true)
+                  listener: beginBlockFunctionBody({)
+                  notEofOrType(CLOSE_CURLY_BRACKET, })
+                  listener: endBlockFunctionBody(0, {, })
+                listener: endClassConstructor(null, C, (, null, })
+              listener: endMember()
+            notEofOrType(CLOSE_CURLY_BRACKET, })
+            listener: endClassOrMixinOrExtensionBody(DeclarationKind.Class, 1, {, })
+          listener: endClassDeclaration(class, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(class)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(class, }, class, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseClassOrNamedMixinApplication(class, null, null, null, null, null, null, null, null, class)
+        listener: beginClassOrMixinOrNamedMixinApplicationPrelude(class)
+        ensureIdentifier(class, classOrMixinDeclaration)
+          listener: handleIdentifier(C, classOrMixinDeclaration)
+        listener: handleNoTypeVariables(()
+        listener: beginClassDeclaration(class, null, null, null, null, null, null, null, null, C)
+        parseClass(C, class, class, null, C)
+          parsePrimaryConstructorOpt(C, null, false)
+            listener: beginPrimaryConstructor(()
+            parseFormalParameters(C, MemberKind.PrimaryConstructor)
+              parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+                listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+                parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                  parseMetadataStar(()
+                    listener: beginMetadataStar(covariant)
+                    listener: endMetadataStar(0)
+                  reportRecoverableErrorWithToken(covariant, Template(ExtraneousModifierInPrimaryConstructor))
+                    listener: handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+                  listener: beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, null)
+                  listener: handleNoType(covariant)
+                  ensureIdentifier(covariant, formalParameterDeclaration)
+                    listener: handleIdentifier(a, formalParameterDeclaration)
+                  listener: handleFormalParameterWithoutValue())
+                  listener: endFormalParameter(null, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+            listener: endPrimaryConstructor((, null, false, false)
+          parseClassHeaderOpt(), class, class)
+            parseClassExtendsOpt(), DeclarationHeaderKind.Class)
+              listener: handleNoType())
+              listener: handleClassExtends(null, 1)
+            parseClassWithClauseOpt())
+              listener: handleClassNoWithClause()
+            parseClassOrMixinOrEnumImplementsOpt())
+              listener: handleImplements(null, 0)
+            listener: handleClassHeader(class, class, null)
+          parseClassOrMixinOrExtensionBody(), DeclarationKind.Class, C)
+            listener: beginClassOrMixinOrExtensionBody(DeclarationKind.Class, {)
+            notEofOrType(CLOSE_CURLY_BRACKET, })
+            listener: endClassOrMixinOrExtensionBody(DeclarationKind.Class, 0, {, })
+          listener: endClassDeclaration(class, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(class)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(class, }, class, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseClassOrNamedMixinApplication(class, null, null, null, null, null, null, null, null, class)
+        listener: beginClassOrMixinOrNamedMixinApplicationPrelude(class)
+        ensureIdentifier(class, classOrMixinDeclaration)
+          listener: handleIdentifier(C, classOrMixinDeclaration)
+        listener: handleNoTypeVariables(()
+        listener: beginClassDeclaration(class, null, null, null, null, null, null, null, null, C)
+        parseClass(C, class, class, null, C)
+          parsePrimaryConstructorOpt(C, null, false)
+            listener: beginPrimaryConstructor(()
+            parseFormalParameters(C, MemberKind.PrimaryConstructor)
+              parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+                listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+                parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                  parseMetadataStar(()
+                    listener: beginMetadataStar(covariant)
+                    listener: endMetadataStar(0)
+                  reportRecoverableErrorWithToken(covariant, Template(ExtraneousModifierInPrimaryConstructor))
+                    listener: handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+                  listener: beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, null)
+                  listener: handleIdentifier(a, typeReference)
+                  listener: handleNoTypeArguments(b)
+                  listener: handleType(a, null)
+                  ensureIdentifier(a, formalParameterDeclaration)
+                    listener: handleIdentifier(b, formalParameterDeclaration)
+                  listener: handleFormalParameterWithoutValue())
+                  listener: endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+            listener: endPrimaryConstructor((, null, false, false)
+          parseClassHeaderOpt(), class, class)
+            parseClassExtendsOpt(), DeclarationHeaderKind.Class)
+              listener: handleNoType())
+              listener: handleClassExtends(null, 1)
+            parseClassWithClauseOpt())
+              listener: handleClassNoWithClause()
+            parseClassOrMixinOrEnumImplementsOpt())
+              listener: handleImplements(null, 0)
+            listener: handleClassHeader(class, class, null)
+          parseClassOrMixinOrExtensionBody(), DeclarationKind.Class, C)
+            listener: beginClassOrMixinOrExtensionBody(DeclarationKind.Class, {)
+            notEofOrType(CLOSE_CURLY_BRACKET, })
+            listener: endClassOrMixinOrExtensionBody(DeclarationKind.Class, 0, {, })
+          listener: endClassDeclaration(class, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(class)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(class, }, class, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseClassOrNamedMixinApplication(class, null, null, null, null, null, null, null, null, class)
+        listener: beginClassOrMixinOrNamedMixinApplicationPrelude(class)
+        ensureIdentifier(class, classOrMixinDeclaration)
+          listener: handleIdentifier(C, classOrMixinDeclaration)
+        listener: handleNoTypeVariables(()
+        listener: beginClassDeclaration(class, null, null, null, null, null, null, null, null, C)
+        parseClass(C, class, class, null, C)
+          parsePrimaryConstructorOpt(C, null, false)
+            listener: beginPrimaryConstructor(()
+            parseFormalParameters(C, MemberKind.PrimaryConstructor)
+              parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+                listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+                parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                  parseMetadataStar(()
+                    listener: beginMetadataStar(covariant)
+                    listener: endMetadataStar(0)
+                  reportRecoverableErrorWithToken(covariant, Template(ExtraneousModifierInPrimaryConstructor))
+                    listener: handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+                  listener: beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, var)
+                  listener: handleNoType(var)
+                  ensureIdentifier(var, formalParameterDeclaration)
+                    listener: handleIdentifier(a, formalParameterDeclaration)
+                  listener: handleFormalParameterWithoutValue())
+                  listener: endFormalParameter(var, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+            listener: endPrimaryConstructor((, null, false, false)
+          parseClassHeaderOpt(), class, class)
+            parseClassExtendsOpt(), DeclarationHeaderKind.Class)
+              listener: handleNoType())
+              listener: handleClassExtends(null, 1)
+            parseClassWithClauseOpt())
+              listener: handleClassNoWithClause()
+            parseClassOrMixinOrEnumImplementsOpt())
+              listener: handleImplements(null, 0)
+            listener: handleClassHeader(class, class, null)
+          parseClassOrMixinOrExtensionBody(), DeclarationKind.Class, C)
+            listener: beginClassOrMixinOrExtensionBody(DeclarationKind.Class, {)
+            notEofOrType(CLOSE_CURLY_BRACKET, })
+            listener: endClassOrMixinOrExtensionBody(DeclarationKind.Class, 0, {, })
+          listener: endClassDeclaration(class, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(class)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(class, }, class, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseClassOrNamedMixinApplication(class, null, null, null, null, null, null, null, null, class)
+        listener: beginClassOrMixinOrNamedMixinApplicationPrelude(class)
+        ensureIdentifier(class, classOrMixinDeclaration)
+          listener: handleIdentifier(C, classOrMixinDeclaration)
+        listener: handleNoTypeVariables(()
+        listener: beginClassDeclaration(class, null, null, null, null, null, null, null, null, C)
+        parseClass(C, class, class, null, C)
+          parsePrimaryConstructorOpt(C, null, false)
+            listener: beginPrimaryConstructor(()
+            parseFormalParameters(C, MemberKind.PrimaryConstructor)
+              parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+                listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+                parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                  parseMetadataStar(()
+                    listener: beginMetadataStar(covariant)
+                    listener: endMetadataStar(0)
+                  reportRecoverableErrorWithToken(covariant, Template(ExtraneousModifierInPrimaryConstructor))
+                    listener: handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+                  listener: beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, final)
+                  listener: handleNoType(final)
+                  ensureIdentifier(final, formalParameterDeclaration)
+                    listener: handleIdentifier(a, formalParameterDeclaration)
+                  listener: handleFormalParameterWithoutValue())
+                  listener: endFormalParameter(final, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+            listener: endPrimaryConstructor((, null, false, false)
+          parseClassHeaderOpt(), class, class)
+            parseClassExtendsOpt(), DeclarationHeaderKind.Class)
+              listener: handleNoType())
+              listener: handleClassExtends(null, 1)
+            parseClassWithClauseOpt())
+              listener: handleClassNoWithClause()
+            parseClassOrMixinOrEnumImplementsOpt())
+              listener: handleImplements(null, 0)
+            listener: handleClassHeader(class, class, null)
+          parseClassOrMixinOrExtensionBody(), DeclarationKind.Class, C)
+            listener: beginClassOrMixinOrExtensionBody(DeclarationKind.Class, {)
+            notEofOrType(CLOSE_CURLY_BRACKET, })
+            listener: endClassOrMixinOrExtensionBody(DeclarationKind.Class, 0, {, })
+          listener: endClassDeclaration(class, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(class)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(class, }, class, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseClassOrNamedMixinApplication(class, null, null, null, null, null, null, null, null, class)
+        listener: beginClassOrMixinOrNamedMixinApplicationPrelude(class)
+        ensureIdentifier(class, classOrMixinDeclaration)
+          listener: handleIdentifier(C, classOrMixinDeclaration)
+        listener: handleNoTypeVariables(()
+        listener: beginClassDeclaration(class, null, null, null, null, null, null, null, null, C)
+        parseClass(C, class, class, null, C)
+          parsePrimaryConstructorOpt(C, null, false)
+            listener: beginPrimaryConstructor(()
+            parseFormalParameters(C, MemberKind.PrimaryConstructor)
+              parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+                listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+                parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                  parseMetadataStar(()
+                    listener: beginMetadataStar(covariant)
+                    listener: endMetadataStar(0)
+                  reportRecoverableErrorWithToken(covariant, Template(ExtraneousModifierInPrimaryConstructor))
+                    listener: handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+                  listener: beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, var)
+                  listener: handleIdentifier(a, typeReference)
+                  listener: handleNoTypeArguments(b)
+                  listener: handleType(a, null)
+                  ensureIdentifier(a, formalParameterDeclaration)
+                    listener: handleIdentifier(b, formalParameterDeclaration)
+                  listener: handleFormalParameterWithoutValue())
+                  listener: endFormalParameter(var, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+            listener: endPrimaryConstructor((, null, false, false)
+          parseClassHeaderOpt(), class, class)
+            parseClassExtendsOpt(), DeclarationHeaderKind.Class)
+              listener: handleNoType())
+              listener: handleClassExtends(null, 1)
+            parseClassWithClauseOpt())
+              listener: handleClassNoWithClause()
+            parseClassOrMixinOrEnumImplementsOpt())
+              listener: handleImplements(null, 0)
+            listener: handleClassHeader(class, class, null)
+          parseClassOrMixinOrExtensionBody(), DeclarationKind.Class, C)
+            listener: beginClassOrMixinOrExtensionBody(DeclarationKind.Class, {)
+            notEofOrType(CLOSE_CURLY_BRACKET, })
+            listener: endClassOrMixinOrExtensionBody(DeclarationKind.Class, 0, {, })
+          listener: endClassDeclaration(class, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(class)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(class, }, class, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseClassOrNamedMixinApplication(class, null, null, null, null, null, null, null, null, class)
+        listener: beginClassOrMixinOrNamedMixinApplicationPrelude(class)
+        ensureIdentifier(class, classOrMixinDeclaration)
+          listener: handleIdentifier(C, classOrMixinDeclaration)
+        listener: handleNoTypeVariables(()
+        listener: beginClassDeclaration(class, null, null, null, null, null, null, null, null, C)
+        parseClass(C, class, class, null, C)
+          parsePrimaryConstructorOpt(C, null, false)
+            listener: beginPrimaryConstructor(()
+            parseFormalParameters(C, MemberKind.PrimaryConstructor)
+              parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+                listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+                parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                  parseMetadataStar(()
+                    listener: beginMetadataStar(covariant)
+                    listener: endMetadataStar(0)
+                  reportRecoverableErrorWithToken(covariant, Template(ExtraneousModifierInPrimaryConstructor))
+                    listener: handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+                  listener: beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, final)
+                  listener: handleIdentifier(a, typeReference)
+                  listener: handleNoTypeArguments(b)
+                  listener: handleType(a, null)
+                  ensureIdentifier(a, formalParameterDeclaration)
+                    listener: handleIdentifier(b, formalParameterDeclaration)
+                  listener: handleFormalParameterWithoutValue())
+                  listener: endFormalParameter(final, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+            listener: endPrimaryConstructor((, null, false, false)
+          parseClassHeaderOpt(), class, class)
+            parseClassExtendsOpt(), DeclarationHeaderKind.Class)
+              listener: handleNoType())
+              listener: handleClassExtends(null, 1)
+            parseClassWithClauseOpt())
+              listener: handleClassNoWithClause()
+            parseClassOrMixinOrEnumImplementsOpt())
+              listener: handleImplements(null, 0)
+            listener: handleClassHeader(class, class, null)
+          parseClassOrMixinOrExtensionBody(), DeclarationKind.Class, C)
+            listener: beginClassOrMixinOrExtensionBody(DeclarationKind.Class, {)
+            notEofOrType(CLOSE_CURLY_BRACKET, })
+            listener: endClassOrMixinOrExtensionBody(DeclarationKind.Class, 0, {, })
+          listener: endClassDeclaration(class, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(enum)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(enum, }, enum, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseEnum(enum, null, enum)
+        listener: beginUncategorizedTopLevelDeclaration(enum)
+        ensureIdentifier(enum, enumDeclaration)
+          listener: handleIdentifier(E, enumDeclaration)
+        listener: beginEnum(enum)
+        listener: handleNoTypeVariables(()
+        parsePrimaryConstructorOpt(E, null, false)
+          listener: beginPrimaryConstructor(()
+          parseFormalParameters(E, MemberKind.PrimaryConstructor)
+            parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+              listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+              parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                parseMetadataStar(()
+                  listener: beginMetadataStar(covariant)
+                  listener: endMetadataStar(0)
+                reportRecoverableErrorWithToken(covariant, Template(ExtraneousModifierInPrimaryConstructor))
+                  listener: handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+                listener: beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, null)
+                listener: handleNoType(covariant)
+                ensureIdentifier(covariant, formalParameterDeclaration)
+                  listener: handleIdentifier(a, formalParameterDeclaration)
+                listener: handleFormalParameterWithoutValue())
+                listener: endFormalParameter(null, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+              listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+          listener: endPrimaryConstructor((, null, false, false)
+        parseEnumHeaderOpt(), enum)
+          parseEnumWithClauseOpt())
+            listener: handleEnumNoWithClause()
+          parseClassOrMixinOrEnumImplementsOpt())
+            listener: handleImplements(null, 0)
+        listener: handleEnumHeader(null, enum, {)
+        listener: beginEnumBody({)
+        listener: handleEnumElements(}, 0)
+        listener: endEnumBody({, })
+        listener: endEnum(enum, enum, {, 0, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(enum)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(enum, }, enum, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseEnum(enum, null, enum)
+        listener: beginUncategorizedTopLevelDeclaration(enum)
+        ensureIdentifier(enum, enumDeclaration)
+          listener: handleIdentifier(E, enumDeclaration)
+        listener: beginEnum(enum)
+        listener: handleNoTypeVariables(()
+        parsePrimaryConstructorOpt(E, null, false)
+          listener: beginPrimaryConstructor(()
+          parseFormalParameters(E, MemberKind.PrimaryConstructor)
+            parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+              listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+              parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                parseMetadataStar(()
+                  listener: beginMetadataStar(covariant)
+                  listener: endMetadataStar(0)
+                reportRecoverableErrorWithToken(covariant, Template(ExtraneousModifierInPrimaryConstructor))
+                  listener: handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+                listener: beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, null)
+                listener: handleIdentifier(a, typeReference)
+                listener: handleNoTypeArguments(b)
+                listener: handleType(a, null)
+                ensureIdentifier(a, formalParameterDeclaration)
+                  listener: handleIdentifier(b, formalParameterDeclaration)
+                listener: handleFormalParameterWithoutValue())
+                listener: endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+              listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+          listener: endPrimaryConstructor((, null, false, false)
+        parseEnumHeaderOpt(), enum)
+          parseEnumWithClauseOpt())
+            listener: handleEnumNoWithClause()
+          parseClassOrMixinOrEnumImplementsOpt())
+            listener: handleImplements(null, 0)
+        listener: handleEnumHeader(null, enum, {)
+        listener: beginEnumBody({)
+        listener: handleEnumElements(}, 0)
+        listener: endEnumBody({, })
+        listener: endEnum(enum, enum, {, 0, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(enum)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(enum, }, enum, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseEnum(enum, null, enum)
+        listener: beginUncategorizedTopLevelDeclaration(enum)
+        ensureIdentifier(enum, enumDeclaration)
+          listener: handleIdentifier(E, enumDeclaration)
+        listener: beginEnum(enum)
+        listener: handleNoTypeVariables(()
+        parsePrimaryConstructorOpt(E, null, false)
+          listener: beginPrimaryConstructor(()
+          parseFormalParameters(E, MemberKind.PrimaryConstructor)
+            parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+              listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+              parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                parseMetadataStar(()
+                  listener: beginMetadataStar(covariant)
+                  listener: endMetadataStar(0)
+                reportRecoverableErrorWithToken(covariant, Template(ExtraneousModifierInPrimaryConstructor))
+                  listener: handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+                listener: beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, var)
+                listener: handleNoType(var)
+                ensureIdentifier(var, formalParameterDeclaration)
+                  listener: handleIdentifier(a, formalParameterDeclaration)
+                listener: handleFormalParameterWithoutValue())
+                listener: endFormalParameter(var, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+              listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+          listener: endPrimaryConstructor((, null, false, false)
+        parseEnumHeaderOpt(), enum)
+          parseEnumWithClauseOpt())
+            listener: handleEnumNoWithClause()
+          parseClassOrMixinOrEnumImplementsOpt())
+            listener: handleImplements(null, 0)
+        listener: handleEnumHeader(null, enum, {)
+        listener: beginEnumBody({)
+        listener: handleEnumElements(}, 0)
+        listener: endEnumBody({, })
+        listener: endEnum(enum, enum, {, 0, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(enum)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(enum, }, enum, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseEnum(enum, null, enum)
+        listener: beginUncategorizedTopLevelDeclaration(enum)
+        ensureIdentifier(enum, enumDeclaration)
+          listener: handleIdentifier(E, enumDeclaration)
+        listener: beginEnum(enum)
+        listener: handleNoTypeVariables(()
+        parsePrimaryConstructorOpt(E, null, false)
+          listener: beginPrimaryConstructor(()
+          parseFormalParameters(E, MemberKind.PrimaryConstructor)
+            parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+              listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+              parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                parseMetadataStar(()
+                  listener: beginMetadataStar(covariant)
+                  listener: endMetadataStar(0)
+                reportRecoverableErrorWithToken(covariant, Template(ExtraneousModifierInPrimaryConstructor))
+                  listener: handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+                listener: beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, final)
+                listener: handleNoType(final)
+                ensureIdentifier(final, formalParameterDeclaration)
+                  listener: handleIdentifier(a, formalParameterDeclaration)
+                listener: handleFormalParameterWithoutValue())
+                listener: endFormalParameter(final, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+              listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+          listener: endPrimaryConstructor((, null, false, false)
+        parseEnumHeaderOpt(), enum)
+          parseEnumWithClauseOpt())
+            listener: handleEnumNoWithClause()
+          parseClassOrMixinOrEnumImplementsOpt())
+            listener: handleImplements(null, 0)
+        listener: handleEnumHeader(null, enum, {)
+        listener: beginEnumBody({)
+        listener: handleEnumElements(}, 0)
+        listener: endEnumBody({, })
+        listener: endEnum(enum, enum, {, 0, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(enum)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(enum, }, enum, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseEnum(enum, null, enum)
+        listener: beginUncategorizedTopLevelDeclaration(enum)
+        ensureIdentifier(enum, enumDeclaration)
+          listener: handleIdentifier(E, enumDeclaration)
+        listener: beginEnum(enum)
+        listener: handleNoTypeVariables(()
+        parsePrimaryConstructorOpt(E, null, false)
+          listener: beginPrimaryConstructor(()
+          parseFormalParameters(E, MemberKind.PrimaryConstructor)
+            parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+              listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+              parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                parseMetadataStar(()
+                  listener: beginMetadataStar(covariant)
+                  listener: endMetadataStar(0)
+                reportRecoverableErrorWithToken(covariant, Template(ExtraneousModifierInPrimaryConstructor))
+                  listener: handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+                listener: beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, var)
+                listener: handleIdentifier(a, typeReference)
+                listener: handleNoTypeArguments(b)
+                listener: handleType(a, null)
+                ensureIdentifier(a, formalParameterDeclaration)
+                  listener: handleIdentifier(b, formalParameterDeclaration)
+                listener: handleFormalParameterWithoutValue())
+                listener: endFormalParameter(var, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+              listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+          listener: endPrimaryConstructor((, null, false, false)
+        parseEnumHeaderOpt(), enum)
+          parseEnumWithClauseOpt())
+            listener: handleEnumNoWithClause()
+          parseClassOrMixinOrEnumImplementsOpt())
+            listener: handleImplements(null, 0)
+        listener: handleEnumHeader(null, enum, {)
+        listener: beginEnumBody({)
+        listener: handleEnumElements(}, 0)
+        listener: endEnumBody({, })
+        listener: endEnum(enum, enum, {, 0, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(enum)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(enum, }, enum, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseEnum(enum, null, enum)
+        listener: beginUncategorizedTopLevelDeclaration(enum)
+        ensureIdentifier(enum, enumDeclaration)
+          listener: handleIdentifier(E, enumDeclaration)
+        listener: beginEnum(enum)
+        listener: handleNoTypeVariables(()
+        parsePrimaryConstructorOpt(E, null, false)
+          listener: beginPrimaryConstructor(()
+          parseFormalParameters(E, MemberKind.PrimaryConstructor)
+            parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+              listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+              parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                parseMetadataStar(()
+                  listener: beginMetadataStar(covariant)
+                  listener: endMetadataStar(0)
+                reportRecoverableErrorWithToken(covariant, Template(ExtraneousModifierInPrimaryConstructor))
+                  listener: handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+                listener: beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, final)
+                listener: handleIdentifier(a, typeReference)
+                listener: handleNoTypeArguments(b)
+                listener: handleType(a, null)
+                ensureIdentifier(a, formalParameterDeclaration)
+                  listener: handleIdentifier(b, formalParameterDeclaration)
+                listener: handleFormalParameterWithoutValue())
+                listener: endFormalParameter(final, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+              listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+          listener: endPrimaryConstructor((, null, false, false)
+        parseEnumHeaderOpt(), enum)
+          parseEnumWithClauseOpt())
+            listener: handleEnumNoWithClause()
+          parseClassOrMixinOrEnumImplementsOpt())
+            listener: handleImplements(null, 0)
+        listener: handleEnumHeader(null, enum, {)
+        listener: beginEnumBody({)
+        listener: handleEnumElements(}, 0)
+        listener: endEnumBody({, })
+        listener: endEnum(enum, enum, {, 0, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(extension)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(extension, }, extension, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseExtension(extension, null, extension)
+        listener: beginExtensionDeclarationPrelude(extension)
+        parseExtensionTypeDeclaration(extension, type, null, extension, type)
+          listener: handleNoTypeVariables(()
+          listener: beginExtensionTypeDeclaration(null, extension, ET)
+          parsePrimaryConstructorOpt(ET, null, true)
+            listener: beginPrimaryConstructor(()
+            parseFormalParameters(ET, MemberKind.PrimaryConstructor)
+              parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+                listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+                parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                  parseMetadataStar(()
+                    listener: beginMetadataStar(int)
+                    listener: endMetadataStar(0)
+                  listener: beginFormalParameter(int, MemberKind.PrimaryConstructor, null, null, null)
+                  listener: handleIdentifier(int, typeReference)
+                  listener: handleNoTypeArguments(i)
+                  listener: handleType(int, null)
+                  ensureIdentifier(int, formalParameterDeclaration)
+                    listener: handleIdentifier(i, formalParameterDeclaration)
+                  listener: handleFormalParameterWithoutValue())
+                  listener: endFormalParameter(null, null, null, null, i, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+            listener: endPrimaryConstructor((, null, false, true)
+          parseClassOrMixinOrEnumImplementsOpt())
+            listener: handleImplements(null, 0)
+          parseClassOrMixinOrExtensionBody(), DeclarationKind.ExtensionType, ET)
+            listener: beginClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, {)
+            notEofOrType(CLOSE_CURLY_BRACKET, ET)
+            parseClassOrMixinOrExtensionOrEnumMemberImpl({, DeclarationKind.ExtensionType, ET)
+              parseMetadataStar({)
+                listener: beginMetadataStar(ET)
+                listener: endMetadataStar(0)
+              listener: beginMember()
+              isReservedKeyword(()
+              parseMethod({, null, null, null, null, null, null, null, {, NoType(), null, ET, DeclarationKind.ExtensionType, ET, false)
+                listener: beginMethod(DeclarationKind.ExtensionType, null, null, null, null, null, null, ET, ET)
+                listener: handleNoType({)
+                ensureIdentifierPotentiallyRecovered({, methodDeclaration, false)
+                  listener: handleIdentifier(ET, methodDeclaration)
+                parseQualifiedRestOpt(ET, methodDeclarationContinuation)
+                parseMethodTypeVar(ET)
+                  listener: handleNoTypeVariables(()
+                parseGetterOrFormalParameters(ET, ET, false, MemberKind.ExtensionTypeNonStaticMethod)
+                  parseFormalParameters(ET, MemberKind.ExtensionTypeNonStaticMethod)
+                    parseFormalParametersRest((, MemberKind.ExtensionTypeNonStaticMethod)
+                      listener: beginFormalParameters((, MemberKind.ExtensionTypeNonStaticMethod)
+                      parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.ExtensionTypeNonStaticMethod)
+                        parseMetadataStar(()
+                          listener: beginMetadataStar(var)
+                          listener: endMetadataStar(0)
+                        listener: beginFormalParameter(var, MemberKind.ExtensionTypeNonStaticMethod, null, null, var)
+                        reportRecoverableError(var, TypeAfterVar)
+                          listener: handleRecoverableError(TypeAfterVar, var, var)
+                        listener: handleIdentifier(a, typeReference)
+                        listener: handleNoTypeArguments(b)
+                        listener: handleType(a, null)
+                        ensureIdentifier(a, formalParameterDeclaration)
+                          listener: handleIdentifier(b, formalParameterDeclaration)
+                        listener: handleFormalParameterWithoutValue())
+                        listener: endFormalParameter(var, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.ExtensionTypeNonStaticMethod)
+                      listener: endFormalParameters(1, (, ), MemberKind.ExtensionTypeNonStaticMethod)
+                parseInitializersOpt())
+                  listener: handleNoInitializers()
+                parseAsyncModifierOpt())
+                  listener: handleAsyncModifier(null, null)
+                  inPlainSync()
+                inPlainSync()
+                parseFunctionBody(), false, true)
+                  listener: beginBlockFunctionBody({)
+                  notEofOrType(CLOSE_CURLY_BRACKET, })
+                  listener: endBlockFunctionBody(0, {, })
+                listener: endExtensionTypeConstructor(null, ET, (, null, })
+              listener: endMember()
+            notEofOrType(CLOSE_CURLY_BRACKET, })
+            listener: endClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, 1, {, })
+          listener: endExtensionTypeDeclaration(extension, null, extension, type, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(extension)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(extension, }, extension, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseExtension(extension, null, extension)
+        listener: beginExtensionDeclarationPrelude(extension)
+        parseExtensionTypeDeclaration(extension, type, null, extension, type)
+          listener: handleNoTypeVariables(()
+          listener: beginExtensionTypeDeclaration(null, extension, ET)
+          parsePrimaryConstructorOpt(ET, null, true)
+            listener: beginPrimaryConstructor(()
+            parseFormalParameters(ET, MemberKind.PrimaryConstructor)
+              parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+                listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+                parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                  parseMetadataStar(()
+                    listener: beginMetadataStar(covariant)
+                    listener: endMetadataStar(0)
+                  reportRecoverableErrorWithToken(covariant, Template(ExtraneousModifierInPrimaryConstructor))
+                    listener: handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+                  listener: beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, null)
+                  listener: handleNoType(covariant)
+                  ensureIdentifier(covariant, formalParameterDeclaration)
+                    listener: handleIdentifier(a, formalParameterDeclaration)
+                  listener: handleFormalParameterWithoutValue())
+                  listener: endFormalParameter(null, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+            listener: endPrimaryConstructor((, null, false, true)
+          parseClassOrMixinOrEnumImplementsOpt())
+            listener: handleImplements(null, 0)
+          parseClassOrMixinOrExtensionBody(), DeclarationKind.ExtensionType, ET)
+            listener: beginClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, {)
+            notEofOrType(CLOSE_CURLY_BRACKET, })
+            listener: endClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, 0, {, })
+          listener: endExtensionTypeDeclaration(extension, null, extension, type, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(extension)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(extension, }, extension, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseExtension(extension, null, extension)
+        listener: beginExtensionDeclarationPrelude(extension)
+        parseExtensionTypeDeclaration(extension, type, null, extension, type)
+          listener: handleNoTypeVariables(()
+          listener: beginExtensionTypeDeclaration(null, extension, ET)
+          parsePrimaryConstructorOpt(ET, null, true)
+            listener: beginPrimaryConstructor(()
+            parseFormalParameters(ET, MemberKind.PrimaryConstructor)
+              parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+                listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+                parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                  parseMetadataStar(()
+                    listener: beginMetadataStar(covariant)
+                    listener: endMetadataStar(0)
+                  reportRecoverableErrorWithToken(covariant, Template(ExtraneousModifierInPrimaryConstructor))
+                    listener: handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+                  listener: beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, null)
+                  listener: handleIdentifier(a, typeReference)
+                  listener: handleNoTypeArguments(b)
+                  listener: handleType(a, null)
+                  ensureIdentifier(a, formalParameterDeclaration)
+                    listener: handleIdentifier(b, formalParameterDeclaration)
+                  listener: handleFormalParameterWithoutValue())
+                  listener: endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+            listener: endPrimaryConstructor((, null, false, true)
+          parseClassOrMixinOrEnumImplementsOpt())
+            listener: handleImplements(null, 0)
+          parseClassOrMixinOrExtensionBody(), DeclarationKind.ExtensionType, ET)
+            listener: beginClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, {)
+            notEofOrType(CLOSE_CURLY_BRACKET, })
+            listener: endClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, 0, {, })
+          listener: endExtensionTypeDeclaration(extension, null, extension, type, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(extension)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(extension, }, extension, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseExtension(extension, null, extension)
+        listener: beginExtensionDeclarationPrelude(extension)
+        parseExtensionTypeDeclaration(extension, type, null, extension, type)
+          listener: handleNoTypeVariables(()
+          listener: beginExtensionTypeDeclaration(null, extension, ET)
+          parsePrimaryConstructorOpt(ET, null, true)
+            listener: beginPrimaryConstructor(()
+            parseFormalParameters(ET, MemberKind.PrimaryConstructor)
+              parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+                listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+                parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                  parseMetadataStar(()
+                    listener: beginMetadataStar(covariant)
+                    listener: endMetadataStar(0)
+                  reportRecoverableErrorWithToken(covariant, Template(ExtraneousModifierInPrimaryConstructor))
+                    listener: handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+                  listener: beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, var)
+                  listener: handleNoType(var)
+                  ensureIdentifier(var, formalParameterDeclaration)
+                    listener: handleIdentifier(a, formalParameterDeclaration)
+                  listener: handleFormalParameterWithoutValue())
+                  listener: endFormalParameter(var, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+            listener: endPrimaryConstructor((, null, false, true)
+          parseClassOrMixinOrEnumImplementsOpt())
+            listener: handleImplements(null, 0)
+          parseClassOrMixinOrExtensionBody(), DeclarationKind.ExtensionType, ET)
+            listener: beginClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, {)
+            notEofOrType(CLOSE_CURLY_BRACKET, })
+            listener: endClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, 0, {, })
+          listener: endExtensionTypeDeclaration(extension, null, extension, type, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(extension)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(extension, }, extension, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseExtension(extension, null, extension)
+        listener: beginExtensionDeclarationPrelude(extension)
+        parseExtensionTypeDeclaration(extension, type, null, extension, type)
+          listener: handleNoTypeVariables(()
+          listener: beginExtensionTypeDeclaration(null, extension, ET)
+          parsePrimaryConstructorOpt(ET, null, true)
+            listener: beginPrimaryConstructor(()
+            parseFormalParameters(ET, MemberKind.PrimaryConstructor)
+              parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+                listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+                parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                  parseMetadataStar(()
+                    listener: beginMetadataStar(covariant)
+                    listener: endMetadataStar(0)
+                  reportRecoverableErrorWithToken(covariant, Template(ExtraneousModifierInPrimaryConstructor))
+                    listener: handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+                  listener: beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, final)
+                  listener: handleNoType(final)
+                  ensureIdentifier(final, formalParameterDeclaration)
+                    listener: handleIdentifier(a, formalParameterDeclaration)
+                  listener: handleFormalParameterWithoutValue())
+                  listener: endFormalParameter(final, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+            listener: endPrimaryConstructor((, null, false, true)
+          parseClassOrMixinOrEnumImplementsOpt())
+            listener: handleImplements(null, 0)
+          parseClassOrMixinOrExtensionBody(), DeclarationKind.ExtensionType, ET)
+            listener: beginClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, {)
+            notEofOrType(CLOSE_CURLY_BRACKET, })
+            listener: endClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, 0, {, })
+          listener: endExtensionTypeDeclaration(extension, null, extension, type, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(extension)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(extension, }, extension, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseExtension(extension, null, extension)
+        listener: beginExtensionDeclarationPrelude(extension)
+        parseExtensionTypeDeclaration(extension, type, null, extension, type)
+          listener: handleNoTypeVariables(()
+          listener: beginExtensionTypeDeclaration(null, extension, ET)
+          parsePrimaryConstructorOpt(ET, null, true)
+            listener: beginPrimaryConstructor(()
+            parseFormalParameters(ET, MemberKind.PrimaryConstructor)
+              parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+                listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+                parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                  parseMetadataStar(()
+                    listener: beginMetadataStar(covariant)
+                    listener: endMetadataStar(0)
+                  reportRecoverableErrorWithToken(covariant, Template(ExtraneousModifierInPrimaryConstructor))
+                    listener: handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+                  listener: beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, var)
+                  listener: handleIdentifier(a, typeReference)
+                  listener: handleNoTypeArguments(b)
+                  listener: handleType(a, null)
+                  ensureIdentifier(a, formalParameterDeclaration)
+                    listener: handleIdentifier(b, formalParameterDeclaration)
+                  listener: handleFormalParameterWithoutValue())
+                  listener: endFormalParameter(var, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+            listener: endPrimaryConstructor((, null, false, true)
+          parseClassOrMixinOrEnumImplementsOpt())
+            listener: handleImplements(null, 0)
+          parseClassOrMixinOrExtensionBody(), DeclarationKind.ExtensionType, ET)
+            listener: beginClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, {)
+            notEofOrType(CLOSE_CURLY_BRACKET, })
+            listener: endClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, 0, {, })
+          listener: endExtensionTypeDeclaration(extension, null, extension, type, })
+  listener: endTopLevelDeclaration(})
+  parseTopLevelDeclarationImpl(}, DirectiveContext(DirectiveState.Declarations))
+    parseMetadataStar(})
+      listener: beginMetadataStar(extension)
+      listener: endMetadataStar(0)
+    parseTopLevelKeywordDeclaration(extension, }, extension, null, null, null, null, DirectiveContext(DirectiveState.Declarations))
+      parseExtension(extension, null, extension)
+        listener: beginExtensionDeclarationPrelude(extension)
+        parseExtensionTypeDeclaration(extension, type, null, extension, type)
+          listener: handleNoTypeVariables(()
+          listener: beginExtensionTypeDeclaration(null, extension, ET)
+          parsePrimaryConstructorOpt(ET, null, true)
+            listener: beginPrimaryConstructor(()
+            parseFormalParameters(ET, MemberKind.PrimaryConstructor)
+              parseFormalParametersRest((, MemberKind.PrimaryConstructor)
+                listener: beginFormalParameters((, MemberKind.PrimaryConstructor)
+                parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                  parseMetadataStar(()
+                    listener: beginMetadataStar(covariant)
+                    listener: endMetadataStar(0)
+                  reportRecoverableErrorWithToken(covariant, Template(ExtraneousModifierInPrimaryConstructor))
+                    listener: handleRecoverableError(Message[Template(ExtraneousModifierInPrimaryConstructor), Can't have modifier 'covariant' in a primary constructor., Try removing 'covariant'., {lexeme: covariant}], covariant, covariant)
+                  listener: beginFormalParameter(covariant, MemberKind.PrimaryConstructor, null, covariant, final)
+                  listener: handleIdentifier(a, typeReference)
+                  listener: handleNoTypeArguments(b)
+                  listener: handleType(a, null)
+                  ensureIdentifier(a, formalParameterDeclaration)
+                    listener: handleIdentifier(b, formalParameterDeclaration)
+                  listener: handleFormalParameterWithoutValue())
+                  listener: endFormalParameter(final, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.PrimaryConstructor)
+                listener: endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
+            listener: endPrimaryConstructor((, null, false, true)
+          parseClassOrMixinOrEnumImplementsOpt())
+            listener: handleImplements(null, 0)
+          parseClassOrMixinOrExtensionBody(), DeclarationKind.ExtensionType, ET)
+            listener: beginClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, {)
+            notEofOrType(CLOSE_CURLY_BRACKET, })
+            listener: endClassOrMixinOrExtensionBody(DeclarationKind.ExtensionType, 0, {, })
+          listener: endExtensionTypeDeclaration(extension, null, extension, type, })
+  listener: endTopLevelDeclaration(})
+  reportAllErrorTokens(m)
+  listener: endCompilationUnit(21, )

pkg/front_end/parser_testcases/declaring_constructors/declaring_parameter_error.dart.parser.expect

@@ -0,0 +1,63 @@
+m(var a b) {}
+
+class C {
+C(var a b) {}
+}
+
+class C(covariant a) {}
+class C(covariant a b) {}
+class C(covariant var a) {}
+class C(covariant final a) {}
+class C(covariant var a b) {}
+class C(covariant final a b) {}
+
+enum E(covariant a) {}
+enum E(covariant a b) {}
+enum E(covariant var a) {}
+enum E(covariant final a) {}
+enum E(covariant var a b) {}
+enum E(covariant final a b) {}
+
+extension type ET(int i) {
+ET(var a b) {}
+}
+
+extension type ET(covariant a) {}
+extension type ET(covariant a b) {}
+extension type ET(covariant var a) {}
+extension type ET(covariant final a) {}
+extension type ET(covariant var a b) {}
+extension type ET(covariant final a b) {}
+
+
+m[StringToken]([BeginToken]var[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+
+class[KeywordToken] C[StringToken] {[BeginToken]
+C[StringToken]([BeginToken]var[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+}[SimpleToken]
+
+class[KeywordToken] C[StringToken]([BeginToken]covariant[KeywordToken] a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+class[KeywordToken] C[StringToken]([BeginToken]covariant[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+class[KeywordToken] C[StringToken]([BeginToken]covariant[KeywordToken] var[KeywordToken] a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+class[KeywordToken] C[StringToken]([BeginToken]covariant[KeywordToken] final[KeywordToken] a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+class[KeywordToken] C[StringToken]([BeginToken]covariant[KeywordToken] var[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+class[KeywordToken] C[StringToken]([BeginToken]covariant[KeywordToken] final[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+
+enum[KeywordToken] E[StringToken]([BeginToken]covariant[KeywordToken] a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+enum[KeywordToken] E[StringToken]([BeginToken]covariant[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+enum[KeywordToken] E[StringToken]([BeginToken]covariant[KeywordToken] var[KeywordToken] a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+enum[KeywordToken] E[StringToken]([BeginToken]covariant[KeywordToken] final[KeywordToken] a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+enum[KeywordToken] E[StringToken]([BeginToken]covariant[KeywordToken] var[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+enum[KeywordToken] E[StringToken]([BeginToken]covariant[KeywordToken] final[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+
+extension[KeywordToken] type[StringToken] ET[StringToken]([BeginToken]int[StringToken] i[StringToken])[SimpleToken] {[BeginToken]
+ET[StringToken]([BeginToken]var[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+}[SimpleToken]
+
+extension[KeywordToken] type[StringToken] ET[StringToken]([BeginToken]covariant[KeywordToken] a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+extension[KeywordToken] type[StringToken] ET[StringToken]([BeginToken]covariant[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+extension[KeywordToken] type[StringToken] ET[StringToken]([BeginToken]covariant[KeywordToken] var[KeywordToken] a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+extension[KeywordToken] type[StringToken] ET[StringToken]([BeginToken]covariant[KeywordToken] final[KeywordToken] a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+extension[KeywordToken] type[StringToken] ET[StringToken]([BeginToken]covariant[KeywordToken] var[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+extension[KeywordToken] type[StringToken] ET[StringToken]([BeginToken]covariant[KeywordToken] final[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+[SimpleToken]

pkg/front_end/parser_testcases/declaring_constructors/declaring_parameter_error.dart.scanner.expect

@@ -0,0 +1,63 @@
+m(var a b) {}
+
+class C {
+C(var a b) {}
+}
+
+class C(covariant a) {}
+class C(covariant a b) {}
+class C(covariant var a) {}
+class C(covariant final a) {}
+class C(covariant var a b) {}
+class C(covariant final a b) {}
+
+enum E(covariant a) {}
+enum E(covariant a b) {}
+enum E(covariant var a) {}
+enum E(covariant final a) {}
+enum E(covariant var a b) {}
+enum E(covariant final a b) {}
+
+extension type ET(int i) {
+ET(var a b) {}
+}
+
+extension type ET(covariant a) {}
+extension type ET(covariant a b) {}
+extension type ET(covariant var a) {}
+extension type ET(covariant final a) {}
+extension type ET(covariant var a b) {}
+extension type ET(covariant final a b) {}
+
+
+m[StringToken]([BeginToken]var[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+
+class[KeywordToken] C[StringToken] {[BeginToken]
+C[StringToken]([BeginToken]var[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+}[SimpleToken]
+
+class[KeywordToken] C[StringToken]([BeginToken]covariant[KeywordToken] a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+class[KeywordToken] C[StringToken]([BeginToken]covariant[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+class[KeywordToken] C[StringToken]([BeginToken]covariant[KeywordToken] var[KeywordToken] a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+class[KeywordToken] C[StringToken]([BeginToken]covariant[KeywordToken] final[KeywordToken] a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+class[KeywordToken] C[StringToken]([BeginToken]covariant[KeywordToken] var[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+class[KeywordToken] C[StringToken]([BeginToken]covariant[KeywordToken] final[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+
+enum[KeywordToken] E[StringToken]([BeginToken]covariant[KeywordToken] a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+enum[KeywordToken] E[StringToken]([BeginToken]covariant[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+enum[KeywordToken] E[StringToken]([BeginToken]covariant[KeywordToken] var[KeywordToken] a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+enum[KeywordToken] E[StringToken]([BeginToken]covariant[KeywordToken] final[KeywordToken] a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+enum[KeywordToken] E[StringToken]([BeginToken]covariant[KeywordToken] var[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+enum[KeywordToken] E[StringToken]([BeginToken]covariant[KeywordToken] final[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+
+extension[KeywordToken] type[StringToken] ET[StringToken]([BeginToken]int[StringToken] i[StringToken])[SimpleToken] {[BeginToken]
+ET[StringToken]([BeginToken]var[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+}[SimpleToken]
+
+extension[KeywordToken] type[StringToken] ET[StringToken]([BeginToken]covariant[KeywordToken] a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+extension[KeywordToken] type[StringToken] ET[StringToken]([BeginToken]covariant[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+extension[KeywordToken] type[StringToken] ET[StringToken]([BeginToken]covariant[KeywordToken] var[KeywordToken] a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+extension[KeywordToken] type[StringToken] ET[StringToken]([BeginToken]covariant[KeywordToken] final[KeywordToken] a[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+extension[KeywordToken] type[StringToken] ET[StringToken]([BeginToken]covariant[KeywordToken] var[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+extension[KeywordToken] type[StringToken] ET[StringToken]([BeginToken]covariant[KeywordToken] final[KeywordToken] a[StringToken] b[StringToken])[SimpleToken] {[BeginToken]}[SimpleToken]
+[SimpleToken]

pkg/front_end/parser_testcases/declaring_constructors/enum_primary_constructor_error.dart.expect

@@ -65,7 +65,7 @@ beginCompilationUnit(enum)
               handleNoType({)
               handleIdentifier(, formalParameterDeclaration)
               handleFormalParameterWithoutValue(})
-            endFormalParameter(null, null, null, , null, null, FormalParameterKind.optionalNamed, MemberKind.PrimaryConstructor)
+            endFormalParameter(null, null, null, null, , null, null, FormalParameterKind.optionalNamed, MemberKind.PrimaryConstructor)
           endOptionalFormalParameters(1, {, }, MemberKind.PrimaryConstructor)
           handleRecoverableError(Message[Template(ExpectedButGot), Expected ')' before this., null, {string: )}], enum, enum)
         endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
@@ -157,7 +157,7 @@ beginCompilationUnit(enum)
               handleNoType({)
               handleIdentifier(, formalParameterDeclaration)
               handleFormalParameterWithoutValue(})
-            endFormalParameter(null, null, null, , null, null, FormalParameterKind.optionalNamed, MemberKind.PrimaryConstructor)
+            endFormalParameter(null, null, null, null, , null, null, FormalParameterKind.optionalNamed, MemberKind.PrimaryConstructor)
           endOptionalFormalParameters(1, {, }, MemberKind.PrimaryConstructor)
           handleRecoverableError(Message[Template(ExpectedButGot), Expected ')' before this., null, {string: )}], enum, enum)
         endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)

pkg/front_end/parser_testcases/declaring_constructors/enum_primary_constructor_error.dart.intertwined.expect

@@ -33,7 +33,7 @@ parseUnit(enum)
                   ensureIdentifier({, formalParameterDeclaration)
                     listener: handleIdentifier(, formalParameterDeclaration)
                   listener: handleFormalParameterWithoutValue(})
-                  listener: endFormalParameter(null, null, null, , null, null, FormalParameterKind.optionalNamed, MemberKind.PrimaryConstructor)
+                  listener: endFormalParameter(null, null, null, null, , null, null, FormalParameterKind.optionalNamed, MemberKind.PrimaryConstructor)
                 listener: endOptionalFormalParameters(1, {, }, MemberKind.PrimaryConstructor)
               ensureCloseParen(}, ()
                 reportRecoverableError(enum, Message[Template(ExpectedButGot), Expected ')' before this., null, {string: )}])
@@ -183,7 +183,7 @@ parseUnit(enum)
                   ensureIdentifier({, formalParameterDeclaration)
                     listener: handleIdentifier(, formalParameterDeclaration)
                   listener: handleFormalParameterWithoutValue(})
-                  listener: endFormalParameter(null, null, null, , null, null, FormalParameterKind.optionalNamed, MemberKind.PrimaryConstructor)
+                  listener: endFormalParameter(null, null, null, null, , null, null, FormalParameterKind.optionalNamed, MemberKind.PrimaryConstructor)
                 listener: endOptionalFormalParameters(1, {, }, MemberKind.PrimaryConstructor)
               ensureCloseParen(}, ()
                 reportRecoverableError(enum, Message[Template(ExpectedButGot), Expected ')' before this., null, {string: )}])

pkg/front_end/parser_testcases/declaring_constructors/extension_type_primary_constructor_error.dart.expect

@@ -84,7 +84,7 @@ beginCompilationUnit(extension)
               handleNoType({)
               handleIdentifier(, formalParameterDeclaration)
               handleFormalParameterWithoutValue(})
-            endFormalParameter(null, null, null, , null, null, FormalParameterKind.optionalNamed, MemberKind.PrimaryConstructor)
+            endFormalParameter(null, null, null, null, , null, null, FormalParameterKind.optionalNamed, MemberKind.PrimaryConstructor)
           endOptionalFormalParameters(1, {, }, MemberKind.PrimaryConstructor)
           handleRecoverableError(Message[Template(ExpectedButGot), Expected ')' before this., null, {string: )}], extension, extension)
         endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)
@@ -161,7 +161,7 @@ beginCompilationUnit(extension)
               handleNoType({)
               handleIdentifier(, formalParameterDeclaration)
               handleFormalParameterWithoutValue(})
-            endFormalParameter(null, null, null, , null, null, FormalParameterKind.optionalNamed, MemberKind.PrimaryConstructor)
+            endFormalParameter(null, null, null, null, , null, null, FormalParameterKind.optionalNamed, MemberKind.PrimaryConstructor)
           endOptionalFormalParameters(1, {, }, MemberKind.PrimaryConstructor)
           handleRecoverableError(Message[Template(ExpectedButGot), Expected ')' before this., null, {string: )}], extension, extension)
         endFormalParameters(1, (, ), MemberKind.PrimaryConstructor)

pkg/front_end/parser_testcases/declaring_constructors/extension_type_primary_constructor_error.dart.intertwined.expect

@@ -32,7 +32,7 @@ parseUnit(extension)
                     ensureIdentifier({, formalParameterDeclaration)
                       listener: handleIdentifier(, formalParameterDeclaration)
                     listener: handleFormalParameterWithoutValue(})
-                    listener: endFormalParameter(null, null, null, , null, null, FormalParameterKind.optionalNamed, MemberKind.PrimaryConstructor)
+                    listener: endFormalParameter(null, null, null, null, , null, null, FormalParameterKind.optionalNamed, MemberKind.PrimaryConstructor)
                   listener: endOptionalFormalParameters(1, {, }, MemberKind.PrimaryConstructor)
                 ensureCloseParen(}, ()
                   reportRecoverableError(extension, Message[Template(ExpectedButGot), Expected ')' before this., null, {string: )}])
@@ -168,7 +168,7 @@ parseUnit(extension)
                     ensureIdentifier({, formalParameterDeclaration)
                       listener: handleIdentifier(, formalParameterDeclaration)
                     listener: handleFormalParameterWithoutValue(})
-                    listener: endFormalParameter(null, null, null, , null, null, FormalParameterKind.optionalNamed, MemberKind.PrimaryConstructor)
+                    listener: endFormalParameter(null, null, null, null, , null, null, FormalParameterKind.optionalNamed, MemberKind.PrimaryConstructor)
                   listener: endOptionalFormalParameters(1, {, }, MemberKind.PrimaryConstructor)
                 ensureCloseParen(}, ()
                   reportRecoverableError(extension, Message[Template(ExpectedButGot), Expected ')' before this., null, {string: )}])

pkg/front_end/parser_testcases/dot_shorthands/const_no_identifier_recovery.dart.expect

@@ -45,7 +45,7 @@ beginCompilationUnit(class)
                 handleNoType(()
                 handleIdentifier(x, fieldInitializer)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(this, null, ., x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, this, null, ., x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)

pkg/front_end/parser_testcases/dot_shorthands/const_no_identifier_recovery.dart.intertwined.expect

@@ -79,7 +79,7 @@ parseUnit(class)
                         ensureIdentifier(., fieldInitializer)
                           listener: handleIdentifier(x, fieldInitializer)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(this, null, ., x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, this, null, ., x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()

pkg/front_end/parser_testcases/dot_shorthands/const_property_recovery.dart.expect

@@ -45,7 +45,7 @@ beginCompilationUnit(class)
                 handleNoType(()
                 handleIdentifier(x, fieldInitializer)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(this, null, ., x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, this, null, ., x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)

pkg/front_end/parser_testcases/dot_shorthands/const_property_recovery.dart.intertwined.expect

@@ -79,7 +79,7 @@ parseUnit(class)
                         ensureIdentifier(., fieldInitializer)
                           listener: handleIdentifier(x, fieldInitializer)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(this, null, ., x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, this, null, ., x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()

pkg/front_end/parser_testcases/enhanced_enums/entries_with_type_arguments.dart.expect

@@ -112,7 +112,7 @@ beginCompilationUnit(enum)
                 handleType(int, null)
                 handleIdentifier(value, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)

pkg/front_end/parser_testcases/enhanced_enums/entries_with_type_arguments.dart.intertwined.expect

@@ -184,7 +184,7 @@ parseUnit(enum)
                     ensureIdentifier(int, formalParameterDeclaration)
                       listener: handleIdentifier(value, formalParameterDeclaration)
                     listener: handleFormalParameterWithoutValue())
-                    listener: endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                    listener: endFormalParameter(null, null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                   listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             parseInitializersOpt())
               listener: handleNoInitializers()

pkg/front_end/parser_testcases/error_recovery/bracket_mismatch_01.dart.expect

@@ -37,7 +37,7 @@ beginCompilationUnit(class)
                   handleNoType({)
                   handleIdentifier(c, formalParameterDeclaration)
                   handleFormalParameterWithoutValue(})
-                endFormalParameter(null, null, null, c, null, null, FormalParameterKind.optionalNamed, MemberKind.NonStaticMethod)
+                endFormalParameter(null, null, null, null, c, null, null, FormalParameterKind.optionalNamed, MemberKind.NonStaticMethod)
               endOptionalFormalParameters(1, {, }, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
@@ -138,7 +138,7 @@ beginCompilationUnit(class)
                   handleNoType({)
                   handleIdentifier(d, formalParameterDeclaration)
                   handleFormalParameterWithoutValue(})
-                endFormalParameter(null, null, null, d, null, null, FormalParameterKind.optionalNamed, MemberKind.NonStaticMethod)
+                endFormalParameter(null, null, null, null, d, null, null, FormalParameterKind.optionalNamed, MemberKind.NonStaticMethod)
               endOptionalFormalParameters(1, {, }, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()

pkg/front_end/parser_testcases/error_recovery/bracket_mismatch_01.dart.intertwined.expect

@@ -57,7 +57,7 @@ parseUnit(class)
                           ensureIdentifier({, formalParameterDeclaration)
                             listener: handleIdentifier(c, formalParameterDeclaration)
                           listener: handleFormalParameterWithoutValue(})
-                          listener: endFormalParameter(null, null, null, c, null, null, FormalParameterKind.optionalNamed, MemberKind.NonStaticMethod)
+                          listener: endFormalParameter(null, null, null, null, c, null, null, FormalParameterKind.optionalNamed, MemberKind.NonStaticMethod)
                         listener: endOptionalFormalParameters(1, {, }, MemberKind.NonStaticMethod)
                       ensureCloseParen(}, ()
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
@@ -305,7 +305,7 @@ parseUnit(class)
                           ensureIdentifier({, formalParameterDeclaration)
                             listener: handleIdentifier(d, formalParameterDeclaration)
                           listener: handleFormalParameterWithoutValue(})
-                          listener: endFormalParameter(null, null, null, d, null, null, FormalParameterKind.optionalNamed, MemberKind.NonStaticMethod)
+                          listener: endFormalParameter(null, null, null, null, d, null, null, FormalParameterKind.optionalNamed, MemberKind.NonStaticMethod)
                         listener: endOptionalFormalParameters(1, {, }, MemberKind.NonStaticMethod)
                       ensureCloseParen(}, ()
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)

pkg/front_end/parser_testcases/error_recovery/extension_member_contributor_test_completion.dart.expect

@@ -50,7 +50,7 @@ beginCompilationUnit(extension)
                 handleType(int, null)
                 handleIdentifier(b, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.ExtensionNonStaticMethod)
+              endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.ExtensionNonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.ExtensionNonStaticMethod, null, null, null)
@@ -59,7 +59,7 @@ beginCompilationUnit(extension)
                 handleType(int, null)
                 handleIdentifier(c, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, c, null, null, FormalParameterKind.requiredPositional, MemberKind.ExtensionNonStaticMethod)
+              endFormalParameter(null, null, null, null, c, null, null, FormalParameterKind.requiredPositional, MemberKind.ExtensionNonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.ExtensionNonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -99,7 +99,7 @@ beginCompilationUnit(extension)
                 handleType(int, null)
                 handleIdentifier(d, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, d, null, null, FormalParameterKind.requiredPositional, MemberKind.ExtensionNonStaticMethod)
+              endFormalParameter(null, null, null, null, d, null, null, FormalParameterKind.requiredPositional, MemberKind.ExtensionNonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.ExtensionNonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -130,7 +130,7 @@ beginCompilationUnit(extension)
           handleType(List, null)
           handleIdentifier(l, formalParameterDeclaration)
           handleFormalParameterWithoutValue())
-        endFormalParameter(null, null, null, l, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, l, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
       endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(null, null)
       beginBlockFunctionBody({)
@@ -168,7 +168,7 @@ beginCompilationUnit(extension)
           handleType(List, null)
           handleIdentifier(l, formalParameterDeclaration)
           handleFormalParameterWithoutValue())
-        endFormalParameter(null, null, null, l, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, l, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
       endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(null, null)
       beginBlockFunctionBody({)

pkg/front_end/parser_testcases/error_recovery/extension_member_contributor_test_completion.dart.intertwined.expect

@@ -64,7 +64,7 @@ parseUnit(extension)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(b, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.ExtensionNonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.ExtensionNonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.ExtensionNonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -76,7 +76,7 @@ parseUnit(extension)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(c, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, c, null, null, FormalParameterKind.requiredPositional, MemberKind.ExtensionNonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, c, null, null, FormalParameterKind.requiredPositional, MemberKind.ExtensionNonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.ExtensionNonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -155,7 +155,7 @@ parseUnit(extension)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(d, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, d, null, null, FormalParameterKind.requiredPositional, MemberKind.ExtensionNonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, d, null, null, FormalParameterKind.requiredPositional, MemberKind.ExtensionNonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.ExtensionNonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -206,7 +206,7 @@ parseUnit(extension)
                 ensureIdentifier(>, formalParameterDeclaration)
                   listener: handleIdentifier(l, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue())
-                listener: endFormalParameter(null, null, null, l, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, l, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
         parseAsyncModifierOpt())
           listener: handleAsyncModifier(null, null)
@@ -282,7 +282,7 @@ parseUnit(extension)
                 ensureIdentifier(>, formalParameterDeclaration)
                   listener: handleIdentifier(l, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue())
-                listener: endFormalParameter(null, null, null, l, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, l, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
         parseAsyncModifierOpt())
           listener: handleAsyncModifier(null, null)

pkg/front_end/parser_testcases/error_recovery/issue_22314.dart.expect

@@ -58,7 +58,7 @@ beginCompilationUnit(const)
                 handleNoType(()
                 handleIdentifier(message, fieldInitializer)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(this, null, ., message, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, this, null, ., message, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)

pkg/front_end/parser_testcases/error_recovery/issue_22314.dart.intertwined.expect

@@ -99,7 +99,7 @@ parseUnit(const)
                         ensureIdentifier(., fieldInitializer)
                           listener: handleIdentifier(message, fieldInitializer)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(this, null, ., message, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, this, null, ., message, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()

pkg/front_end/parser_testcases/error_recovery/issue_26073.dart.expect

@@ -53,7 +53,7 @@ beginCompilationUnit(typedef)
             handleType(int, null)
             handleIdentifier(x, formalParameterDeclaration)
             handleFormalParameterWithoutValue())
-          endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.GeneralizedFunctionType)
+          endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.GeneralizedFunctionType)
         endFormalParameters(1, (, ), MemberKind.GeneralizedFunctionType)
       endFunctionType(Function, null)
     endTypedef(null, typedef, =, ;)
@@ -76,7 +76,7 @@ beginCompilationUnit(typedef)
             handleType(int, null)
             handleIdentifier(x, formalParameterDeclaration)
             handleFormalParameterWithoutValue())
-          endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.GeneralizedFunctionType)
+          endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.GeneralizedFunctionType)
         endFormalParameters(1, (, ), MemberKind.GeneralizedFunctionType)
       endFunctionType(Function, null)
     endTypedef(null, typedef, =, ;)
@@ -102,7 +102,7 @@ beginCompilationUnit(typedef)
             handleType(int, null)
             handleIdentifier(x, formalParameterDeclaration)
             handleFormalParameterWithoutValue())
-          endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.GeneralizedFunctionType)
+          endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.GeneralizedFunctionType)
         endFormalParameters(1, (, ), MemberKind.GeneralizedFunctionType)
       endFunctionType(Function, null)
     endTypedef(null, typedef, =, ;)
@@ -151,7 +151,7 @@ beginCompilationUnit(typedef)
             handleType(int, null)
             handleIdentifier(x, formalParameterDeclaration)
             handleFormalParameterWithoutValue())
-          endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.GeneralizedFunctionType)
+          endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.GeneralizedFunctionType)
         endFormalParameters(1, (, ), MemberKind.GeneralizedFunctionType)
       endFunctionType(Function, null)
     endTypedef(null, typedef, =, ;)
@@ -183,7 +183,7 @@ beginCompilationUnit(typedef)
             handleType(int, null)
             handleIdentifier(x, formalParameterDeclaration)
             handleFormalParameterWithoutValue())
-          endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.GeneralizedFunctionType)
+          endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.GeneralizedFunctionType)
         endFormalParameters(1, (, ), MemberKind.GeneralizedFunctionType)
       endFunctionType(Function, null)
     endTypedef(null, typedef, =, ;)
@@ -225,7 +225,7 @@ beginCompilationUnit(typedef)
             handleType(int, null)
             handleIdentifier(x, formalParameterDeclaration)
             handleFormalParameterWithoutValue())
-          endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.GeneralizedFunctionType)
+          endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.GeneralizedFunctionType)
         endFormalParameters(1, (, ), MemberKind.GeneralizedFunctionType)
       endFunctionType(Function, null)
     endTypedef(null, typedef, =, ;)
@@ -281,7 +281,7 @@ beginCompilationUnit(typedef)
             handleType(int, null)
             handleIdentifier(x, formalParameterDeclaration)
             handleFormalParameterWithoutValue())
-          endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.GeneralizedFunctionType)
+          endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.GeneralizedFunctionType)
         endFormalParameters(1, (, ), MemberKind.GeneralizedFunctionType)
       endFunctionType(Function, null)
     endTypedef(null, typedef, =, ;)

pkg/front_end/parser_testcases/error_recovery/issue_26073.dart.intertwined.expect

@@ -33,7 +33,7 @@ parseUnit(typedef)
               ensureIdentifier(int, formalParameterDeclaration)
                 listener: handleIdentifier(x, formalParameterDeclaration)
               listener: handleFormalParameterWithoutValue())
-              listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.GeneralizedFunctionType)
+              listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.GeneralizedFunctionType)
             listener: endFormalParameters(1, (, ), MemberKind.GeneralizedFunctionType)
         listener: endFunctionType(Function, null)
         ensureSemicolon())
@@ -67,7 +67,7 @@ parseUnit(typedef)
               ensureIdentifier(int, formalParameterDeclaration)
                 listener: handleIdentifier(x, formalParameterDeclaration)
               listener: handleFormalParameterWithoutValue())
-              listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.GeneralizedFunctionType)
+              listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.GeneralizedFunctionType)
             listener: endFormalParameters(1, (, ), MemberKind.GeneralizedFunctionType)
         listener: endFunctionType(Function, null)
         ensureSemicolon())
@@ -107,7 +107,7 @@ parseUnit(typedef)
               ensureIdentifier(int, formalParameterDeclaration)
                 listener: handleIdentifier(x, formalParameterDeclaration)
               listener: handleFormalParameterWithoutValue())
-              listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.GeneralizedFunctionType)
+              listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.GeneralizedFunctionType)
             listener: endFormalParameters(1, (, ), MemberKind.GeneralizedFunctionType)
         listener: endFunctionType(Function, null)
         ensureSemicolon())
@@ -181,7 +181,7 @@ parseUnit(typedef)
               ensureIdentifier(int, formalParameterDeclaration)
                 listener: handleIdentifier(x, formalParameterDeclaration)
               listener: handleFormalParameterWithoutValue())
-              listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.GeneralizedFunctionType)
+              listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.GeneralizedFunctionType)
             listener: endFormalParameters(1, (, ), MemberKind.GeneralizedFunctionType)
         listener: endFunctionType(Function, null)
         ensureSemicolon())
@@ -226,7 +226,7 @@ parseUnit(typedef)
               ensureIdentifier(int, formalParameterDeclaration)
                 listener: handleIdentifier(x, formalParameterDeclaration)
               listener: handleFormalParameterWithoutValue())
-              listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.GeneralizedFunctionType)
+              listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.GeneralizedFunctionType)
             listener: endFormalParameters(1, (, ), MemberKind.GeneralizedFunctionType)
         listener: endFunctionType(Function, null)
         ensureSemicolon())
@@ -282,7 +282,7 @@ parseUnit(typedef)
               ensureIdentifier(int, formalParameterDeclaration)
                 listener: handleIdentifier(x, formalParameterDeclaration)
               listener: handleFormalParameterWithoutValue())
-              listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.GeneralizedFunctionType)
+              listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.GeneralizedFunctionType)
             listener: endFormalParameters(1, (, ), MemberKind.GeneralizedFunctionType)
         listener: endFunctionType(Function, null)
         ensureSemicolon())
@@ -361,7 +361,7 @@ parseUnit(typedef)
               ensureIdentifier(int, formalParameterDeclaration)
                 listener: handleIdentifier(x, formalParameterDeclaration)
               listener: handleFormalParameterWithoutValue())
-              listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.GeneralizedFunctionType)
+              listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.GeneralizedFunctionType)
             listener: endFormalParameters(1, (, ), MemberKind.GeneralizedFunctionType)
         listener: endFunctionType(Function, null)
         ensureSemicolon())

pkg/front_end/parser_testcases/error_recovery/issue_26810.dart.expect

@@ -388,7 +388,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -397,7 +397,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -433,7 +433,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -442,7 +442,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -477,7 +477,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -486,7 +486,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -525,7 +525,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -534,7 +534,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -572,7 +572,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -581,7 +581,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -636,7 +636,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -645,7 +645,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -699,7 +699,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -708,7 +708,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -750,7 +750,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -759,7 +759,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -800,7 +800,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -809,7 +809,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -854,7 +854,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -863,7 +863,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -905,7 +905,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -914,7 +914,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -992,7 +992,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -1001,7 +1001,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             beginInitializers(:)
               beginInitializer(foo)
@@ -1083,7 +1083,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -1092,7 +1092,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             beginInitializers(:)
               beginInitializer(foo)
@@ -1171,7 +1171,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -1180,7 +1180,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)

pkg/front_end/parser_testcases/error_recovery/issue_26810.dart.intertwined.expect

@@ -764,7 +764,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -776,7 +776,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -858,7 +858,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -870,7 +870,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -941,7 +941,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -953,7 +953,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -1042,7 +1042,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -1054,7 +1054,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -1132,7 +1132,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -1144,7 +1144,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -1267,7 +1267,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -1279,7 +1279,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -1391,7 +1391,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -1403,7 +1403,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -1504,7 +1504,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -1516,7 +1516,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -1601,7 +1601,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -1613,7 +1613,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -1721,7 +1721,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -1733,7 +1733,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -1824,7 +1824,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -1836,7 +1836,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -2054,7 +2054,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -2066,7 +2066,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   parseInitializers(:)
@@ -2288,7 +2288,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -2300,7 +2300,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   parseInitializers(:)
@@ -2489,7 +2489,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -2501,7 +2501,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()

pkg/front_end/parser_testcases/error_recovery/issue_26810_and.dart.expect

@@ -388,7 +388,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -397,7 +397,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -433,7 +433,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -442,7 +442,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -477,7 +477,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -486,7 +486,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -525,7 +525,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -534,7 +534,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -572,7 +572,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -581,7 +581,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -636,7 +636,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -645,7 +645,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -699,7 +699,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -708,7 +708,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -750,7 +750,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -759,7 +759,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -800,7 +800,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -809,7 +809,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -854,7 +854,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -863,7 +863,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -905,7 +905,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -914,7 +914,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -992,7 +992,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -1001,7 +1001,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             beginInitializers(:)
               beginInitializer(foo)
@@ -1083,7 +1083,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -1092,7 +1092,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             beginInitializers(:)
               beginInitializer(foo)
@@ -1171,7 +1171,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -1180,7 +1180,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)

pkg/front_end/parser_testcases/error_recovery/issue_26810_and.dart.intertwined.expect

@@ -766,7 +766,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -778,7 +778,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -860,7 +860,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -872,7 +872,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -943,7 +943,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -955,7 +955,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -1044,7 +1044,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -1056,7 +1056,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -1134,7 +1134,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -1146,7 +1146,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -1269,7 +1269,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -1281,7 +1281,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -1393,7 +1393,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -1405,7 +1405,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -1507,7 +1507,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -1519,7 +1519,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -1604,7 +1604,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -1616,7 +1616,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -1725,7 +1725,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -1737,7 +1737,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -1828,7 +1828,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -1840,7 +1840,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -2058,7 +2058,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -2070,7 +2070,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   parseInitializers(:)
@@ -2292,7 +2292,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -2304,7 +2304,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   parseInitializers(:)
@@ -2493,7 +2493,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -2505,7 +2505,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()

pkg/front_end/parser_testcases/error_recovery/issue_26810_or.dart.expect

@@ -388,7 +388,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -397,7 +397,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -433,7 +433,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -442,7 +442,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -477,7 +477,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -486,7 +486,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -525,7 +525,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -534,7 +534,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -572,7 +572,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -581,7 +581,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -636,7 +636,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -645,7 +645,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -699,7 +699,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -708,7 +708,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -750,7 +750,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -759,7 +759,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -800,7 +800,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -809,7 +809,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -854,7 +854,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -863,7 +863,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -905,7 +905,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -914,7 +914,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -992,7 +992,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -1001,7 +1001,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             beginInitializers(:)
               beginInitializer(foo)
@@ -1083,7 +1083,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -1092,7 +1092,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             beginInitializers(:)
               beginInitializer(foo)
@@ -1171,7 +1171,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue(,)
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
               beginMetadataStar(int)
               endMetadataStar(0)
               beginFormalParameter(int, MemberKind.NonStaticMethod, null, null, null)
@@ -1180,7 +1180,7 @@ beginCompilationUnit(abstract)
                 handleType(int, null)
                 handleIdentifier(y, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)

pkg/front_end/parser_testcases/error_recovery/issue_26810_or.dart.intertwined.expect

@@ -766,7 +766,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -778,7 +778,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -860,7 +860,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -872,7 +872,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -943,7 +943,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -955,7 +955,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -1044,7 +1044,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -1056,7 +1056,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -1134,7 +1134,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -1146,7 +1146,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -1269,7 +1269,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -1281,7 +1281,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -1393,7 +1393,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -1405,7 +1405,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -1507,7 +1507,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -1519,7 +1519,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -1604,7 +1604,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -1616,7 +1616,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -1725,7 +1725,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -1737,7 +1737,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -1828,7 +1828,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -1840,7 +1840,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -2058,7 +2058,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -2070,7 +2070,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   parseInitializers(:)
@@ -2292,7 +2292,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -2304,7 +2304,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   parseInitializers(:)
@@ -2493,7 +2493,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue(,)
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                         parseMetadataStar(,)
                           listener: beginMetadataStar(int)
@@ -2505,7 +2505,7 @@ parseUnit(abstract)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(y, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, y, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(2, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()

pkg/front_end/parser_testcases/error_recovery/issue_42267.dart.expect

@@ -57,7 +57,7 @@ beginCompilationUnit(void)
                 handleNoType(()
                 handleIdentifier(builder, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, builder, null, null, FormalParameterKind.requiredPositional, MemberKind.Local)
+              endFormalParameter(null, null, null, null, builder, null, null, FormalParameterKind.requiredPositional, MemberKind.Local)
             endFormalParameters(1, (, ), MemberKind.Local)
             handleAsyncModifier(null, null)
             handleIdentifier(builder, expression)
@@ -111,7 +111,7 @@ beginCompilationUnit(void)
                 handleNoType(()
                 handleIdentifier(builder, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, builder, null, null, FormalParameterKind.requiredPositional, MemberKind.Local)
+              endFormalParameter(null, null, null, null, builder, null, null, FormalParameterKind.requiredPositional, MemberKind.Local)
             endFormalParameters(1, (, ), MemberKind.Local)
             handleAsyncModifier(null, null)
             handleIdentifier(builder, expression)
@@ -166,7 +166,7 @@ beginCompilationUnit(void)
                 handleNoType(()
                 handleIdentifier(builder, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, builder, null, null, FormalParameterKind.requiredPositional, MemberKind.Local)
+              endFormalParameter(null, null, null, null, builder, null, null, FormalParameterKind.requiredPositional, MemberKind.Local)
             endFormalParameters(1, (, ), MemberKind.Local)
             handleAsyncModifier(null, null)
             handleIdentifier(builder, expression)

pkg/front_end/parser_testcases/error_recovery/issue_42267.dart.intertwined.expect

@@ -112,7 +112,7 @@ parseUnit(void)
                                                       ensureIdentifier((, formalParameterDeclaration)
                                                         listener: handleIdentifier(builder, formalParameterDeclaration)
                                                       listener: handleFormalParameterWithoutValue())
-                                                      listener: endFormalParameter(null, null, null, builder, null, null, FormalParameterKind.requiredPositional, MemberKind.Local)
+                                                      listener: endFormalParameter(null, null, null, null, builder, null, null, FormalParameterKind.requiredPositional, MemberKind.Local)
                                                     listener: endFormalParameters(1, (, ), MemberKind.Local)
                                                 parseAsyncOptBody(), true, false)
                                                   parseAsyncModifierOpt())
@@ -257,7 +257,7 @@ parseUnit(void)
                                                       ensureIdentifier((, formalParameterDeclaration)
                                                         listener: handleIdentifier(builder, formalParameterDeclaration)
                                                       listener: handleFormalParameterWithoutValue())
-                                                      listener: endFormalParameter(null, null, null, builder, null, null, FormalParameterKind.requiredPositional, MemberKind.Local)
+                                                      listener: endFormalParameter(null, null, null, null, builder, null, null, FormalParameterKind.requiredPositional, MemberKind.Local)
                                                     listener: endFormalParameters(1, (, ), MemberKind.Local)
                                                 parseAsyncOptBody(), true, false)
                                                   parseAsyncModifierOpt())
@@ -404,7 +404,7 @@ parseUnit(void)
                                                       ensureIdentifier((, formalParameterDeclaration)
                                                         listener: handleIdentifier(builder, formalParameterDeclaration)
                                                       listener: handleFormalParameterWithoutValue())
-                                                      listener: endFormalParameter(null, null, null, builder, null, null, FormalParameterKind.requiredPositional, MemberKind.Local)
+                                                      listener: endFormalParameter(null, null, null, null, builder, null, null, FormalParameterKind.requiredPositional, MemberKind.Local)
                                                     listener: endFormalParameters(1, (, ), MemberKind.Local)
                                                 parseAsyncOptBody(), true, false)
                                                   parseAsyncModifierOpt())

pkg/front_end/parser_testcases/error_recovery/issue_44785.crash_dart.expect

@@ -33,7 +33,7 @@ beginCompilationUnit(foo)
           handleType(int, null)
           handleIdentifier(a, formalParameterDeclaration)
           handleFormalParameterWithoutValue(,)
-        endFormalParameter(null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
         beginMetadataStar(int)
         endMetadataStar(0)
         beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
@@ -42,7 +42,7 @@ beginCompilationUnit(foo)
           handleType(int, null)
           handleIdentifier(b, formalParameterDeclaration)
           handleFormalParameterWithoutValue())
-        endFormalParameter(null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
       endFormalParameters(2, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(null, null)
       beginBlockFunctionBody({)
@@ -93,7 +93,7 @@ beginCompilationUnit(foo)
           handleType(int, null)
           handleIdentifier(a, formalParameterDeclaration)
           handleFormalParameterWithoutValue(,)
-        endFormalParameter(null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
         beginMetadataStar(int)
         endMetadataStar(0)
         beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
@@ -102,7 +102,7 @@ beginCompilationUnit(foo)
           handleType(int, null)
           handleIdentifier(b, formalParameterDeclaration)
           handleFormalParameterWithoutValue())
-        endFormalParameter(null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
       endFormalParameters(2, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(null, null)
       beginBlockFunctionBody({)

pkg/front_end/parser_testcases/error_recovery/issue_44785.crash_dart.intertwined.expect

@@ -31,7 +31,7 @@ parseUnit(foo)
                 ensureIdentifier(int, formalParameterDeclaration)
                   listener: handleIdentifier(a, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue(,)
-                listener: endFormalParameter(null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
                 parseMetadataStar(,)
                   listener: beginMetadataStar(int)
@@ -43,7 +43,7 @@ parseUnit(foo)
                 ensureIdentifier(int, formalParameterDeclaration)
                   listener: handleIdentifier(b, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue())
-                listener: endFormalParameter(null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               listener: endFormalParameters(2, (, ), MemberKind.TopLevelMethod)
         parseAsyncModifierOpt())
           listener: handleAsyncModifier(null, null)
@@ -182,7 +182,7 @@ parseUnit(foo)
                 ensureIdentifier(int, formalParameterDeclaration)
                   listener: handleIdentifier(a, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue(,)
-                listener: endFormalParameter(null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
                 parseMetadataStar(,)
                   listener: beginMetadataStar(int)
@@ -194,7 +194,7 @@ parseUnit(foo)
                 ensureIdentifier(int, formalParameterDeclaration)
                   listener: handleIdentifier(b, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue())
-                listener: endFormalParameter(null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               listener: endFormalParameters(2, (, ), MemberKind.TopLevelMethod)
         parseAsyncModifierOpt())
           listener: handleAsyncModifier(null, null)

pkg/front_end/parser_testcases/error_recovery/issue_44785_prime_1.crash_dart.expect

@@ -41,7 +41,7 @@ beginCompilationUnit(foo)
           handleType(int, null)
           handleIdentifier(a, formalParameterDeclaration)
           handleFormalParameterWithoutValue(,)
-        endFormalParameter(null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
         beginMetadataStar(int)
         endMetadataStar(0)
         beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
@@ -50,7 +50,7 @@ beginCompilationUnit(foo)
           handleType(int, null)
           handleIdentifier(b, formalParameterDeclaration)
           handleFormalParameterWithoutValue())
-        endFormalParameter(null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
       endFormalParameters(2, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(null, null)
       beginBlockFunctionBody({)
@@ -100,7 +100,7 @@ beginCompilationUnit(foo)
           handleType(int, null)
           handleIdentifier(a, formalParameterDeclaration)
           handleFormalParameterWithoutValue(,)
-        endFormalParameter(null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
         beginMetadataStar(int)
         endMetadataStar(0)
         beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
@@ -109,7 +109,7 @@ beginCompilationUnit(foo)
           handleType(int, null)
           handleIdentifier(b, formalParameterDeclaration)
           handleFormalParameterWithoutValue(,)
-        endFormalParameter(null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
         beginMetadataStar(int)
         endMetadataStar(0)
         beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
@@ -118,7 +118,7 @@ beginCompilationUnit(foo)
           handleType(int, null)
           handleIdentifier(c, formalParameterDeclaration)
           handleFormalParameterWithoutValue())
-        endFormalParameter(null, null, null, c, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, c, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
       endFormalParameters(3, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(null, null)
       beginBlockFunctionBody({)
@@ -178,7 +178,7 @@ beginCompilationUnit(foo)
           handleType(int, null)
           handleIdentifier(a, formalParameterDeclaration)
           handleFormalParameterWithoutValue(,)
-        endFormalParameter(null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
         beginMetadataStar(int)
         endMetadataStar(0)
         beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
@@ -187,7 +187,7 @@ beginCompilationUnit(foo)
           handleType(int, null)
           handleIdentifier(b, formalParameterDeclaration)
           handleFormalParameterWithoutValue())
-        endFormalParameter(null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
       endFormalParameters(2, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(null, null)
       beginBlockFunctionBody({)
@@ -237,7 +237,7 @@ beginCompilationUnit(foo)
           handleType(int, null)
           handleIdentifier(a, formalParameterDeclaration)
           handleFormalParameterWithoutValue(,)
-        endFormalParameter(null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
         beginMetadataStar(int)
         endMetadataStar(0)
         beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
@@ -246,7 +246,7 @@ beginCompilationUnit(foo)
           handleType(int, null)
           handleIdentifier(b, formalParameterDeclaration)
           handleFormalParameterWithoutValue(,)
-        endFormalParameter(null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
         beginMetadataStar(int)
         endMetadataStar(0)
         beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
@@ -255,7 +255,7 @@ beginCompilationUnit(foo)
           handleType(int, null)
           handleIdentifier(c, formalParameterDeclaration)
           handleFormalParameterWithoutValue())
-        endFormalParameter(null, null, null, c, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, c, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
       endFormalParameters(3, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(null, null)
       beginBlockFunctionBody({)

pkg/front_end/parser_testcases/error_recovery/issue_44785_prime_1.crash_dart.intertwined.expect

@@ -31,7 +31,7 @@ parseUnit(foo)
                 ensureIdentifier(int, formalParameterDeclaration)
                   listener: handleIdentifier(a, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue(,)
-                listener: endFormalParameter(null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
                 parseMetadataStar(,)
                   listener: beginMetadataStar(int)
@@ -43,7 +43,7 @@ parseUnit(foo)
                 ensureIdentifier(int, formalParameterDeclaration)
                   listener: handleIdentifier(b, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue())
-                listener: endFormalParameter(null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               listener: endFormalParameters(2, (, ), MemberKind.TopLevelMethod)
         parseAsyncModifierOpt())
           listener: handleAsyncModifier(null, null)
@@ -179,7 +179,7 @@ parseUnit(foo)
                 ensureIdentifier(int, formalParameterDeclaration)
                   listener: handleIdentifier(a, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue(,)
-                listener: endFormalParameter(null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
                 parseMetadataStar(,)
                   listener: beginMetadataStar(int)
@@ -191,7 +191,7 @@ parseUnit(foo)
                 ensureIdentifier(int, formalParameterDeclaration)
                   listener: handleIdentifier(b, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue(,)
-                listener: endFormalParameter(null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
                 parseMetadataStar(,)
                   listener: beginMetadataStar(int)
@@ -203,7 +203,7 @@ parseUnit(foo)
                 ensureIdentifier(int, formalParameterDeclaration)
                   listener: handleIdentifier(c, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue())
-                listener: endFormalParameter(null, null, null, c, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, c, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               listener: endFormalParameters(3, (, ), MemberKind.TopLevelMethod)
         parseAsyncModifierOpt())
           listener: handleAsyncModifier(null, null)
@@ -384,7 +384,7 @@ parseUnit(foo)
                 ensureIdentifier(int, formalParameterDeclaration)
                   listener: handleIdentifier(a, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue(,)
-                listener: endFormalParameter(null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
                 parseMetadataStar(,)
                   listener: beginMetadataStar(int)
@@ -396,7 +396,7 @@ parseUnit(foo)
                 ensureIdentifier(int, formalParameterDeclaration)
                   listener: handleIdentifier(b, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue())
-                listener: endFormalParameter(null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               listener: endFormalParameters(2, (, ), MemberKind.TopLevelMethod)
         parseAsyncModifierOpt())
           listener: handleAsyncModifier(null, null)
@@ -532,7 +532,7 @@ parseUnit(foo)
                 ensureIdentifier(int, formalParameterDeclaration)
                   listener: handleIdentifier(a, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue(,)
-                listener: endFormalParameter(null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
                 parseMetadataStar(,)
                   listener: beginMetadataStar(int)
@@ -544,7 +544,7 @@ parseUnit(foo)
                 ensureIdentifier(int, formalParameterDeclaration)
                   listener: handleIdentifier(b, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue(,)
-                listener: endFormalParameter(null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
                 parseMetadataStar(,)
                   listener: beginMetadataStar(int)
@@ -556,7 +556,7 @@ parseUnit(foo)
                 ensureIdentifier(int, formalParameterDeclaration)
                   listener: handleIdentifier(c, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue())
-                listener: endFormalParameter(null, null, null, c, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, c, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               listener: endFormalParameters(3, (, ), MemberKind.TopLevelMethod)
         parseAsyncModifierOpt())
           listener: handleAsyncModifier(null, null)

pkg/front_end/parser_testcases/error_recovery/issue_44785_prime_2.crash_dart.expect

@@ -15,7 +15,7 @@ beginCompilationUnit(foo)
           handleType(int, null)
           handleIdentifier(a, formalParameterDeclaration)
           handleFormalParameterWithoutValue(,)
-        endFormalParameter(null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
         beginMetadataStar(int)
         endMetadataStar(0)
         beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
@@ -24,7 +24,7 @@ beginCompilationUnit(foo)
           handleType(int, null)
           handleIdentifier(b, formalParameterDeclaration)
           handleFormalParameterWithoutValue())
-        endFormalParameter(null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
       endFormalParameters(2, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(null, null)
       beginBlockFunctionBody({)
@@ -73,7 +73,7 @@ beginCompilationUnit(foo)
           handleType(int, null)
           handleIdentifier(a, formalParameterDeclaration)
           handleFormalParameterWithoutValue(,)
-        endFormalParameter(null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
         beginMetadataStar(int)
         endMetadataStar(0)
         beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
@@ -82,7 +82,7 @@ beginCompilationUnit(foo)
           handleType(int, null)
           handleIdentifier(b, formalParameterDeclaration)
           handleFormalParameterWithoutValue(,)
-        endFormalParameter(null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
         beginMetadataStar(int)
         endMetadataStar(0)
         beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
@@ -91,7 +91,7 @@ beginCompilationUnit(foo)
           handleType(int, null)
           handleIdentifier(c, formalParameterDeclaration)
           handleFormalParameterWithoutValue())
-        endFormalParameter(null, null, null, c, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, c, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
       endFormalParameters(3, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(null, null)
       beginBlockFunctionBody({)
@@ -149,7 +149,7 @@ beginCompilationUnit(foo)
           handleType(int, null)
           handleIdentifier(a, formalParameterDeclaration)
           handleFormalParameterWithoutValue(,)
-        endFormalParameter(null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
         beginMetadataStar(int)
         endMetadataStar(0)
         beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
@@ -158,7 +158,7 @@ beginCompilationUnit(foo)
           handleType(int, null)
           handleIdentifier(b, formalParameterDeclaration)
           handleFormalParameterWithoutValue())
-        endFormalParameter(null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
       endFormalParameters(2, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(null, null)
       beginBlockFunctionBody({)
@@ -207,7 +207,7 @@ beginCompilationUnit(foo)
           handleType(int, null)
           handleIdentifier(a, formalParameterDeclaration)
           handleFormalParameterWithoutValue(,)
-        endFormalParameter(null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
         beginMetadataStar(int)
         endMetadataStar(0)
         beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
@@ -216,7 +216,7 @@ beginCompilationUnit(foo)
           handleType(int, null)
           handleIdentifier(b, formalParameterDeclaration)
           handleFormalParameterWithoutValue(,)
-        endFormalParameter(null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
         beginMetadataStar(int)
         endMetadataStar(0)
         beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
@@ -225,7 +225,7 @@ beginCompilationUnit(foo)
           handleType(int, null)
           handleIdentifier(c, formalParameterDeclaration)
           handleFormalParameterWithoutValue())
-        endFormalParameter(null, null, null, c, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, c, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
       endFormalParameters(3, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(null, null)
       beginBlockFunctionBody({)

pkg/front_end/parser_testcases/error_recovery/issue_44785_prime_2.crash_dart.intertwined.expect

@@ -31,7 +31,7 @@ parseUnit(foo)
                 ensureIdentifier(int, formalParameterDeclaration)
                   listener: handleIdentifier(a, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue(,)
-                listener: endFormalParameter(null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
                 parseMetadataStar(,)
                   listener: beginMetadataStar(int)
@@ -43,7 +43,7 @@ parseUnit(foo)
                 ensureIdentifier(int, formalParameterDeclaration)
                   listener: handleIdentifier(b, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue())
-                listener: endFormalParameter(null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               listener: endFormalParameters(2, (, ), MemberKind.TopLevelMethod)
         parseAsyncModifierOpt())
           listener: handleAsyncModifier(null, null)
@@ -155,7 +155,7 @@ parseUnit(foo)
                 ensureIdentifier(int, formalParameterDeclaration)
                   listener: handleIdentifier(a, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue(,)
-                listener: endFormalParameter(null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
                 parseMetadataStar(,)
                   listener: beginMetadataStar(int)
@@ -167,7 +167,7 @@ parseUnit(foo)
                 ensureIdentifier(int, formalParameterDeclaration)
                   listener: handleIdentifier(b, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue(,)
-                listener: endFormalParameter(null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
                 parseMetadataStar(,)
                   listener: beginMetadataStar(int)
@@ -179,7 +179,7 @@ parseUnit(foo)
                 ensureIdentifier(int, formalParameterDeclaration)
                   listener: handleIdentifier(c, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue())
-                listener: endFormalParameter(null, null, null, c, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, c, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               listener: endFormalParameters(3, (, ), MemberKind.TopLevelMethod)
         parseAsyncModifierOpt())
           listener: handleAsyncModifier(null, null)
@@ -311,7 +311,7 @@ parseUnit(foo)
                 ensureIdentifier(int, formalParameterDeclaration)
                   listener: handleIdentifier(a, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue(,)
-                listener: endFormalParameter(null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
                 parseMetadataStar(,)
                   listener: beginMetadataStar(int)
@@ -323,7 +323,7 @@ parseUnit(foo)
                 ensureIdentifier(int, formalParameterDeclaration)
                   listener: handleIdentifier(b, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue())
-                listener: endFormalParameter(null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               listener: endFormalParameters(2, (, ), MemberKind.TopLevelMethod)
         parseAsyncModifierOpt())
           listener: handleAsyncModifier(null, null)
@@ -435,7 +435,7 @@ parseUnit(foo)
                 ensureIdentifier(int, formalParameterDeclaration)
                   listener: handleIdentifier(a, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue(,)
-                listener: endFormalParameter(null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
                 parseMetadataStar(,)
                   listener: beginMetadataStar(int)
@@ -447,7 +447,7 @@ parseUnit(foo)
                 ensureIdentifier(int, formalParameterDeclaration)
                   listener: handleIdentifier(b, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue(,)
-                listener: endFormalParameter(null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
                 parseMetadataStar(,)
                   listener: beginMetadataStar(int)
@@ -459,7 +459,7 @@ parseUnit(foo)
                 ensureIdentifier(int, formalParameterDeclaration)
                   listener: handleIdentifier(c, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue())
-                listener: endFormalParameter(null, null, null, c, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, c, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               listener: endFormalParameters(3, (, ), MemberKind.TopLevelMethod)
         parseAsyncModifierOpt())
           listener: handleAsyncModifier(null, null)

pkg/front_end/parser_testcases/error_recovery/issue_45327_prime_1.crash_dart.expect

@@ -46,7 +46,7 @@ beginCompilationUnit(class)
                 handleType(Object, ?)
                 handleIdentifier(key, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, key, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, key, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)

pkg/front_end/parser_testcases/error_recovery/issue_45327_prime_1.crash_dart.intertwined.expect

@@ -65,7 +65,7 @@ parseUnit(UnmatchedToken(())
                         ensureIdentifier(?, formalParameterDeclaration)
                           listener: handleIdentifier(key, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, key, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, key, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()

pkg/front_end/parser_testcases/error_recovery/issue_46505_prime_6.crash_dart.expect

@@ -48,7 +48,7 @@ beginCompilationUnit(class)
                 handleType(T, null)
                 handleIdentifier(foo, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, foo, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, foo, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -87,7 +87,7 @@ beginCompilationUnit(class)
                 handleType(T, null)
                 handleIdentifier(foo, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, foo, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, foo, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -119,7 +119,7 @@ beginCompilationUnit(class)
                 handleType(T, null)
                 handleIdentifier(foo, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, foo, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, foo, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)

pkg/front_end/parser_testcases/error_recovery/issue_46505_prime_6.crash_dart.intertwined.expect

@@ -73,7 +73,7 @@ parseUnit(class)
                         ensureIdentifier(T, formalParameterDeclaration)
                           listener: handleIdentifier(foo, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, foo, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, foo, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -137,7 +137,7 @@ parseUnit(class)
                         ensureIdentifier(T, formalParameterDeclaration)
                           listener: handleIdentifier(foo, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, foo, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, foo, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -189,7 +189,7 @@ parseUnit(class)
                         ensureIdentifier(T, formalParameterDeclaration)
                           listener: handleIdentifier(foo, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, foo, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, foo, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()

pkg/front_end/parser_testcases/error_recovery/issue_46736.dart.expect

@@ -22,7 +22,7 @@ beginCompilationUnit(void)
           handleRecoverableError(Message[Template(ExpectedIdentifierButGotKeyword), 'default' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: default}], default, default)
           handleIdentifier(default, formalParameterDeclaration)
           handleFormalParameterWithoutValue())
-        endFormalParameter(null, null, null, default, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, default, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
       endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(null, null)
       beginBlockFunctionBody({)

pkg/front_end/parser_testcases/error_recovery/issue_46736.dart.intertwined.expect

@@ -32,7 +32,7 @@ parseUnit(void)
                     listener: handleRecoverableError(Message[Template(ExpectedIdentifierButGotKeyword), 'default' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: default}], default, default)
                   listener: handleIdentifier(default, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue())
-                listener: endFormalParameter(null, null, null, default, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, default, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
         parseAsyncModifierOpt())
           listener: handleAsyncModifier(null, null)

pkg/front_end/parser_testcases/error_recovery/issue_46736_prime.dart.expect

@@ -15,7 +15,7 @@ beginCompilationUnit(void)
           handleType(String, null)
           handleIdentifier(defaultX, formalParameterDeclaration)
           handleFormalParameterWithoutValue())
-        endFormalParameter(null, null, null, defaultX, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, defaultX, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
       endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(null, null)
       beginBlockFunctionBody({)

pkg/front_end/parser_testcases/error_recovery/issue_46736_prime.dart.intertwined.expect

@@ -30,7 +30,7 @@ parseUnit(void)
                 ensureIdentifier(String, formalParameterDeclaration)
                   listener: handleIdentifier(defaultX, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue())
-                listener: endFormalParameter(null, null, null, defaultX, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, defaultX, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
         parseAsyncModifierOpt())
           listener: handleAsyncModifier(null, null)

pkg/front_end/parser_testcases/error_recovery/issue_48288.dart.expect

@@ -21,7 +21,7 @@ beginCompilationUnit(void)
           handleType(int, null)
           handleIdentifier(x, formalParameterDeclaration)
           handleFormalParameterWithoutValue())
-        endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
       endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(null, null)
       beginBlockFunctionBody({)

pkg/front_end/parser_testcases/error_recovery/issue_48288.dart.intertwined.expect

@@ -30,7 +30,7 @@ parseUnit(void)
                 ensureIdentifier(int, formalParameterDeclaration)
                   listener: handleIdentifier(x, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue())
-                listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
         parseAsyncModifierOpt())
           listener: handleAsyncModifier(null, null)

pkg/front_end/parser_testcases/error_recovery/issue_48288_prime.dart.expect

@@ -15,7 +15,7 @@ beginCompilationUnit(void)
           handleType(int, null)
           handleIdentifier(x, formalParameterDeclaration)
           handleFormalParameterWithoutValue())
-        endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
       endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(null, null)
       beginBlockFunctionBody({)

pkg/front_end/parser_testcases/error_recovery/issue_48288_prime.dart.intertwined.expect

@@ -30,7 +30,7 @@ parseUnit(void)
                 ensureIdentifier(int, formalParameterDeclaration)
                   listener: handleIdentifier(x, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue())
-                listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
         parseAsyncModifierOpt())
           listener: handleAsyncModifier(null, null)

pkg/front_end/parser_testcases/error_recovery/issue_48371_prime3.dart.expect

@@ -59,7 +59,7 @@ beginCompilationUnit(enum)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)

pkg/front_end/parser_testcases/error_recovery/issue_48371_prime3.dart.intertwined.expect

@@ -96,7 +96,7 @@ parseUnit(enum)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()

pkg/front_end/parser_testcases/error_recovery/issue_48411.dart.expect

@@ -54,7 +54,7 @@ beginCompilationUnit(class)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -79,7 +79,7 @@ beginCompilationUnit(class)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -120,7 +120,7 @@ beginCompilationUnit(class)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             beginInitializers(:)
               beginInitializer(assert)
@@ -185,7 +185,7 @@ beginCompilationUnit(class)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             beginInitializers(:)
               beginInitializer(assert)
@@ -252,7 +252,7 @@ beginCompilationUnit(class)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             beginInitializers(:)
               beginInitializer(assert)
@@ -303,7 +303,7 @@ beginCompilationUnit(class)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -355,7 +355,7 @@ beginCompilationUnit(class)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             beginInitializers(:)
               beginInitializer(assert)
@@ -420,7 +420,7 @@ beginCompilationUnit(class)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             beginInitializers(:)
               beginInitializer(assert)
@@ -499,7 +499,7 @@ beginCompilationUnit(class)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             beginInitializers(:)
               beginInitializer(assert)

pkg/front_end/parser_testcases/error_recovery/issue_48411.dart.intertwined.expect

@@ -57,7 +57,7 @@ parseUnit(class)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -103,7 +103,7 @@ parseUnit(class)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -177,7 +177,7 @@ parseUnit(class)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   parseInitializers(:)
@@ -303,7 +303,7 @@ parseUnit(class)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   parseInitializers(:)
@@ -436,7 +436,7 @@ parseUnit(class)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   parseInitializers(:)
@@ -540,7 +540,7 @@ parseUnit(class)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -631,7 +631,7 @@ parseUnit(class)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   parseInitializers(:)
@@ -764,7 +764,7 @@ parseUnit(class)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   parseInitializers(:)
@@ -919,7 +919,7 @@ parseUnit(class)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   parseInitializers(:)

pkg/front_end/parser_testcases/error_recovery/issue_48411_prime.dart.expect

@@ -28,7 +28,7 @@ beginCompilationUnit(class)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -53,7 +53,7 @@ beginCompilationUnit(class)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -94,7 +94,7 @@ beginCompilationUnit(class)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             beginInitializers(:)
               beginInitializer(assert)
@@ -158,7 +158,7 @@ beginCompilationUnit(class)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             beginInitializers(:)
               beginInitializer(assert)
@@ -224,7 +224,7 @@ beginCompilationUnit(class)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             beginInitializers(:)
               beginInitializer(assert)
@@ -274,7 +274,7 @@ beginCompilationUnit(class)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             handleNoInitializers()
             handleAsyncModifier(null, null)
@@ -326,7 +326,7 @@ beginCompilationUnit(class)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             beginInitializers(:)
               beginInitializer(assert)
@@ -390,7 +390,7 @@ beginCompilationUnit(class)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             beginInitializers(:)
               beginInitializer(assert)
@@ -468,7 +468,7 @@ beginCompilationUnit(class)
                 handleType(int, null)
                 handleIdentifier(x, formalParameterDeclaration)
                 handleFormalParameterWithoutValue())
-              endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+              endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
             endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
             beginInitializers(:)
               beginInitializer(assert)

pkg/front_end/parser_testcases/error_recovery/issue_48411_prime.dart.intertwined.expect

@@ -57,7 +57,7 @@ parseUnit(class)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -103,7 +103,7 @@ parseUnit(class)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -177,7 +177,7 @@ parseUnit(class)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   parseInitializers(:)
@@ -300,7 +300,7 @@ parseUnit(class)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   parseInitializers(:)
@@ -430,7 +430,7 @@ parseUnit(class)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   parseInitializers(:)
@@ -531,7 +531,7 @@ parseUnit(class)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   listener: handleNoInitializers()
@@ -622,7 +622,7 @@ parseUnit(class)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   parseInitializers(:)
@@ -752,7 +752,7 @@ parseUnit(class)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   parseInitializers(:)
@@ -904,7 +904,7 @@ parseUnit(class)
                         ensureIdentifier(int, formalParameterDeclaration)
                           listener: handleIdentifier(x, formalParameterDeclaration)
                         listener: handleFormalParameterWithoutValue())
-                        listener: endFormalParameter(null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
+                        listener: endFormalParameter(null, null, null, null, x, null, null, FormalParameterKind.requiredPositional, MemberKind.NonStaticMethod)
                       listener: endFormalParameters(1, (, ), MemberKind.NonStaticMethod)
                 parseInitializersOpt())
                   parseInitializers(:)

pkg/front_end/parser_testcases/error_recovery/issue_49116.dart.expect

@@ -828,7 +828,7 @@ beginCompilationUnit(Future)
               handleType(int, null)
               handleIdentifier(bar, formalParameterDeclaration)
               handleFormalParameterWithoutValue())
-            endFormalParameter(null, null, null, bar, null, null, FormalParameterKind.requiredPositional, MemberKind.Local)
+            endFormalParameter(null, null, null, null, bar, null, null, FormalParameterKind.requiredPositional, MemberKind.Local)
           endFormalParameters(1, (, ), MemberKind.Local)
           handleNoInitializers()
           handleAsyncModifier(null, null)
@@ -865,7 +865,7 @@ beginCompilationUnit(Future)
               handleType(await, null)
               handleIdentifier(baz, formalParameterDeclaration)
               handleFormalParameterWithoutValue(,)
-            endFormalParameter(null, null, null, baz, null, null, FormalParameterKind.requiredPositional, MemberKind.Local)
+            endFormalParameter(null, null, null, null, baz, null, null, FormalParameterKind.requiredPositional, MemberKind.Local)
             beginMetadataStar(await)
             endMetadataStar(0)
             beginFormalParameter(await, MemberKind.Local, null, null, null)
@@ -874,7 +874,7 @@ beginCompilationUnit(Future)
               handleType(await, null)
               handleIdentifier(baz2, formalParameterDeclaration)
               handleFormalParameterWithoutValue(,)
-            endFormalParameter(null, null, null, baz2, null, null, FormalParameterKind.requiredPositional, MemberKind.Local)
+            endFormalParameter(null, null, null, null, baz2, null, null, FormalParameterKind.requiredPositional, MemberKind.Local)
             beginMetadataStar(await)
             endMetadataStar(0)
             beginFormalParameter(await, MemberKind.Local, null, null, null)
@@ -883,7 +883,7 @@ beginCompilationUnit(Future)
               handleType(await, null)
               handleIdentifier(baz3, formalParameterDeclaration)
               handleFormalParameterWithoutValue())
-            endFormalParameter(null, null, null, baz3, null, null, FormalParameterKind.requiredPositional, MemberKind.Local)
+            endFormalParameter(null, null, null, null, baz3, null, null, FormalParameterKind.requiredPositional, MemberKind.Local)
           endFormalParameters(3, (, ), MemberKind.Local)
           handleNoInitializers()
           handleAsyncModifier(null, null)
@@ -917,7 +917,7 @@ beginCompilationUnit(Future)
           handleType(bool, null)
           handleIdentifier(a, formalParameterDeclaration)
           handleFormalParameterWithoutValue(,)
-        endFormalParameter(null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
         beginMetadataStar(bool)
         endMetadataStar(0)
         beginFormalParameter(bool, MemberKind.TopLevelMethod, null, null, null)
@@ -926,7 +926,7 @@ beginCompilationUnit(Future)
           handleType(bool, null)
           handleIdentifier(b, formalParameterDeclaration)
           handleFormalParameterWithoutValue(,)
-        endFormalParameter(null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
         beginMetadataStar(bool)
         endMetadataStar(0)
         beginFormalParameter(bool, MemberKind.TopLevelMethod, null, null, null)
@@ -935,7 +935,7 @@ beginCompilationUnit(Future)
           handleType(bool, null)
           handleIdentifier(c, formalParameterDeclaration)
           handleFormalParameterWithoutValue())
-        endFormalParameter(null, null, null, c, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, c, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
       endFormalParameters(3, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(null, null)
       beginBlockFunctionBody({)

pkg/front_end/parser_testcases/error_recovery/issue_49116.dart.intertwined.expect

@@ -1989,7 +1989,7 @@ parseUnit(Future)
                           ensureIdentifier(int, formalParameterDeclaration)
                             listener: handleIdentifier(bar, formalParameterDeclaration)
                           listener: handleFormalParameterWithoutValue())
-                          listener: endFormalParameter(null, null, null, bar, null, null, FormalParameterKind.requiredPositional, MemberKind.Local)
+                          listener: endFormalParameter(null, null, null, null, bar, null, null, FormalParameterKind.requiredPositional, MemberKind.Local)
                         listener: endFormalParameters(1, (, ), MemberKind.Local)
                     parseInitializersOpt())
                       listener: handleNoInitializers()
@@ -2065,7 +2065,7 @@ parseUnit(Future)
                           ensureIdentifier(await, formalParameterDeclaration)
                             listener: handleIdentifier(baz, formalParameterDeclaration)
                           listener: handleFormalParameterWithoutValue(,)
-                          listener: endFormalParameter(null, null, null, baz, null, null, FormalParameterKind.requiredPositional, MemberKind.Local)
+                          listener: endFormalParameter(null, null, null, null, baz, null, null, FormalParameterKind.requiredPositional, MemberKind.Local)
                         parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.Local)
                           parseMetadataStar(,)
                             listener: beginMetadataStar(await)
@@ -2077,7 +2077,7 @@ parseUnit(Future)
                           ensureIdentifier(await, formalParameterDeclaration)
                             listener: handleIdentifier(baz2, formalParameterDeclaration)
                           listener: handleFormalParameterWithoutValue(,)
-                          listener: endFormalParameter(null, null, null, baz2, null, null, FormalParameterKind.requiredPositional, MemberKind.Local)
+                          listener: endFormalParameter(null, null, null, null, baz2, null, null, FormalParameterKind.requiredPositional, MemberKind.Local)
                         parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.Local)
                           parseMetadataStar(,)
                             listener: beginMetadataStar(await)
@@ -2089,7 +2089,7 @@ parseUnit(Future)
                           ensureIdentifier(await, formalParameterDeclaration)
                             listener: handleIdentifier(baz3, formalParameterDeclaration)
                           listener: handleFormalParameterWithoutValue())
-                          listener: endFormalParameter(null, null, null, baz3, null, null, FormalParameterKind.requiredPositional, MemberKind.Local)
+                          listener: endFormalParameter(null, null, null, null, baz3, null, null, FormalParameterKind.requiredPositional, MemberKind.Local)
                         listener: endFormalParameters(3, (, ), MemberKind.Local)
                     parseInitializersOpt())
                       listener: handleNoInitializers()
@@ -2156,7 +2156,7 @@ parseUnit(Future)
                 ensureIdentifier(bool, formalParameterDeclaration)
                   listener: handleIdentifier(a, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue(,)
-                listener: endFormalParameter(null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
                 parseMetadataStar(,)
                   listener: beginMetadataStar(bool)
@@ -2168,7 +2168,7 @@ parseUnit(Future)
                 ensureIdentifier(bool, formalParameterDeclaration)
                   listener: handleIdentifier(b, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue(,)
-                listener: endFormalParameter(null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, b, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               parseFormalParameter(,, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
                 parseMetadataStar(,)
                   listener: beginMetadataStar(bool)
@@ -2180,7 +2180,7 @@ parseUnit(Future)
                 ensureIdentifier(bool, formalParameterDeclaration)
                   listener: handleIdentifier(c, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue())
-                listener: endFormalParameter(null, null, null, c, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, c, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               listener: endFormalParameters(3, (, ), MemberKind.TopLevelMethod)
         parseAsyncModifierOpt())
           listener: handleAsyncModifier(null, null)

pkg/front_end/parser_testcases/error_recovery/issue_49477.dart.expect

@@ -42,7 +42,7 @@ beginCompilationUnit(import)
           handleType(List, null)
           handleIdentifier(args, formalParameterDeclaration)
           handleFormalParameterWithoutValue())
-        endFormalParameter(null, null, null, args, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+        endFormalParameter(null, null, null, null, args, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
       endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
       handleAsyncModifier(async, null)
       beginBlockFunctionBody({)
@@ -106,7 +106,7 @@ beginCompilationUnit(import)
               handleType(String, null)
               handleIdentifier(message, formalParameterDeclaration)
               handleFormalParameterWithoutValue())
-            endFormalParameter(null, null, null, message, null, null, FormalParameterKind.requiredPositional, MemberKind.Local)
+            endFormalParameter(null, null, null, null, message, null, null, FormalParameterKind.requiredPositional, MemberKind.Local)
           endFormalParameters(1, (, ), MemberKind.Local)
           handleNoInitializers()
           handleAsyncModifier(null, null)

pkg/front_end/parser_testcases/error_recovery/issue_49477.dart.intertwined.expect

@@ -57,7 +57,7 @@ parseUnit(import)
                 ensureIdentifier(>, formalParameterDeclaration)
                   listener: handleIdentifier(args, formalParameterDeclaration)
                 listener: handleFormalParameterWithoutValue())
-                listener: endFormalParameter(null, null, null, args, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
+                listener: endFormalParameter(null, null, null, null, args, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
               listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
         parseAsyncModifierOpt())
           listener: handleAsyncModifier(async, null)
@@ -206,7 +206,7 @@ parseUnit(import)
                           ensureIdentifier(String, formalParameterDeclaration)
                             listener: handleIdentifier(message, formalParameterDeclaration)
                           listener: handleFormalParameterWithoutValue())
-                          listener: endFormalParameter(null, null, null, message, null, null, FormalParameterKind.requiredPositional, MemberKind.Local)
+                          listener: endFormalParameter(null, null, null, null, message, null, null, FormalParameterKind.requiredPositional, MemberKind.Local)
                         listener: endFormalParameters(1, (, ), MemberKind.Local)
                     parseInitializersOpt())
                       listener: handleNoInitializers()