anchor.diff:  import 'package:analyzer/src/error/codes.dart';
   import 'package:test_reflective_loader/test_reflective_loader.dart';
   
  -import '../dart/resolution/context_collection_resolution.dart';
   import 'sdk_constraint_verifier_support.dart';
   
   main() {
  
positive.code:   String get testPackageLanguageVersion =>
        '${ExperimentStatus.currentVersion.major}.'
        '${ExperimentStatus.currentVersion.minor}';
  
    @override
    void setUp() {
      super.setUp();
      writeTestPackageAnalysisOptionsFile(
        AnalysisOptionsFileConfig(
          experiments: [
            EnableString.triple_shift,
          ],
        ),
      );
    }
  
    test_const_equals() async {
      // TODO(brianwilkerson) Add '>>>' to MockSdk and remove the code
  
negative.code: 
    test_nonConst_lessThan() async {
      // TODO(brianwilkerson) Add '>>>' to MockSdk and remove the code
      //  UNDEFINED_OPERATOR when triple_shift is enabled by default.
      await verifyVersion('2.2.0', '''
  var a = 42 >>> 3;
  ''', expectedErrors: [
  