anchor.diff:        testOptions.add(Flags.enableAsserts);
       }
       print('----------------------------------------------------------------');
  -    print('Checking ${entity.uri}');
  -    print('----------------------------------------------------------------');
  +    print('Test: $name');
       // Pretend this is a dart2js_native test to allow use of 'native' keyword
       // and import of private libraries.
       String commonTestPath = 'sdk/tests/compiler';
  
positive.code:     };
  
      if (libDirectory != null) {
        print('----------------------------------------------------------------');
        print('Loading support libraries:');
        String filePrefix = name.substring(0, name.lastIndexOf('.'));
        await for (FileSystemEntity libEntity in libDirectory.list()) {
          String libFileName = libEntity.uri.pathSegments.last;
          if (libFileName.startsWith(filePrefix)) {
            print('    - loading ${libEntity.uri}');
            Uri libFileUri =
                Uri.parse('memory:$commonTestPath/libs/$libFileName');
            userFiles.add(libEntity.uri.pathSegments.last);
  
negative.code:           computeExpectedMap(libFileUri, annotatedLibCode, expectedMaps);
          }
        }
      }
  
      if (setUpFunction != null) setUpFunction();
  
      if (skipforAst.contains(name)) {
        print('--skipped for ast-----------------------------------------------');
      } else {
        print('--from ast------------------------------------------------------');
        CompiledData compiledData1 = await computeData(
  