anchor.diff:    _kOptionSdkRoot,
     _kOptionTestFile,
     _kOptionDillFile,
  +  _kOptionIcudtl
   ];
   const String _kOptionCoverage = 'coverage';
   const String _kOptionCoveragePath = 'coverage-path';
  
positive.code:         fs.link(artifacts.getArtifactPath(Artifact.flutterTester));
      testerDestLink.parent.createSync(recursive: true);
      testerDestLink.createSync(shellPath);
      final Directory sdkRootDest =
          fs.directory(artifacts.getArtifactPath(Artifact.flutterPatchedSdkPath));
      sdkRootDest.createSync(recursive: true);
  
negative.code:     ..addOption(_kOptionSdkRoot, help: 'Path to the SDK platform files')
      ..addOption(_kOptionTestFile, help: 'Test file to execute')
      ..addOption(_kOptionDillFile, help: 'Precompiled dill file for test')
      ..addOption(_kOptionIcudtl, help: 'Path to the ICU data file')
      ..addFlag(_kOptionCoverage,
        defaultsTo: false,
        negatable: false,
  