anchor.diff:          suiteDir = Repository.dir.join(suiteDirectory),
           extraVmOptions = configuration.vmOptions,
           super(configuration, suiteName, statusFilePaths) {
  +    // Initialize _dart2JsBootstrapDependencies
       if (!useSdk) {
         _dart2JsBootstrapDependencies = [];
       } else {
  
positive.code:             .resolve('dart-sdk/bin/snapshots/dart2js.dart.snapshot')
        ];
      }
      if (configuration.testList != null) {
        _testListPossibleFilenames = Set<String>();
        for (String s in configuration.testList) {
  
negative.code:   final List<String> extraVmOptions;
    List<Uri> _dart2JsBootstrapDependencies;
    Set<String> _testListPossibleFilenames;
    RegExp _selectorFilenameRegExp;
  
    static final Uri co19SuiteLocation = Repository.uri.resolve("tests/co19_2/");
  
  