anchor.diff:  
       test('can compile in basic mode', () {
         final dartSdkSummary = new File('lib/sdk/ddc_sdk.sum').absolute;
  -      var result = Process.runSync('dart', [
  +      var result = Process.runSync(Platform.executable, [
           'bin/dartdevc.dart',
           '--summary-extension=api.ds',
           '--no-source-map',
  
positive.code:         ..add('--does-not-exist')
          ..add('--ignore-unrecognized-flags')
          ..addAll(compilerArgs);
        var result = Process.runSync('dart', args);
  
        expect(result.exitCode, EXIT_CODE_OK);
        expect(result.stdout, isEmpty);
  
negative.code:     });
  
      test('works if part and library supplied', () {
        var result = Process.runSync(Platform.executable, [
          'bin/dartdevc.dart',
          '--no-summarize',
          '--no-source-map',
  