Add additional case where we use the use-dart2js-libraries flag in test.dart.

tools/testing/dart/test_suite.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 /**
  * Classes and methods for enumerating and preparing tests.
  *
  * This library includes:
  *
  * - Creating tests by listing all the Dart files in certain directories,
@@ skipping 1379 matching lines @@
       args.add(packageRoot);
     }
     args.addAll(additionalOptions(filePath));
     if (configuration['analyzer']) {
       args.add('--machine');
       args.add('--no-hints');
     }
 
     if ((configuration["compiler"] == "dartanalyzer" ||
         configuration["compiler"] == "dart2analyzer") &&
-        filePath.filename.contains("dart2js")) {
+        (filePath.filename.contains("dart2js") ||
+        filePath.directoryPath.segments().last.contains('html_common'))) {
       args.add("--use-dart2js-libraries");
     }
 
     bool isMultitest = optionsFromFile["isMultitest"];
     List<String> dartOptions = optionsFromFile["dartOptions"];
 
     assert(!isMultitest || dartOptions == null);
     if (dartOptions == null) {
       args.add(filePath.toNativePath());
     } else {
@@ skipping 806 matching lines @@
  * $pass tests are expected to pass
  * $failOk tests are expected to fail that we won't fix
  * $fail tests are expected to fail that we should fix
  * $crash tests are expected to crash that we should fix
  * $timeout tests are allowed to timeout
  * $compileErrorSkip tests are skipped on browsers due to compile-time error
 """;
     print(report);
   }
 }