analyzer: add triple-shift experiment to all tests

Change-Id: I560f82b239d78b748f6e2298a291d71cd2c831a0
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/184840
Commit-Queue: Samuel Rawlins <srawlins@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>

pkg/analyzer/test/generated/constant_test.dart

@@ -5,7 +5,6 @@
 @deprecated
 library analyzer.test.constant_test;
 
-import 'package:analyzer/src/dart/analysis/experiments.dart';
 import 'package:analyzer/src/dart/element/element.dart';
 import 'package:analyzer/src/generated/constant.dart';
 import 'package:test/test.dart';
@@ -21,18 +20,6 @@ main() {
 
 @reflectiveTest
 class ConstantEvaluatorTest extends PubPackageResolutionTest {
-  @override
-  void setUp() {
-    super.setUp();
-    writeTestPackageAnalysisOptionsFile(
-      AnalysisOptionsFileConfig(
-        experiments: [
-          EnableString.triple_shift,
-        ],
-      ),
-    );
-  }
-
   test_bitAnd_int_int() async {
     await _assertValueInt(74 & 42, "74 & 42");
   }

pkg/analyzer/test/src/dart/resolution/context_collection_resolution.dart

@@ -263,7 +263,10 @@ class PubPackageResolutionTest extends ContextResolutionTest {
     super.setUp();
     writeTestPackageAnalysisOptionsFile(
       AnalysisOptionsFileConfig(
-        experiments: [EnableString.nonfunction_type_aliases],
+        experiments: [
+          EnableString.nonfunction_type_aliases,
+          EnableString.triple_shift,
+        ],
       ),
     );
     writeTestPackageConfig(