Fix new HTML test type when using dart2dart compiler.

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 1398 matching lines @@
         if (uri.pathSegments.length > 1) {
           Fail('HTML test scripts must be in test directory: $scriptPath');
           break;
         }
         Uri script = testUri.resolveUri(uri);
         Uri copiedScript = tempUri.resolveUri(uri);
         if (compiler == 'none' || scriptPath.endsWith('.js')) {
           new File.fromUri(copiedScript).writeAsStringSync(
               new File.fromUri(script).readAsStringSync());
         } else {
+          var destination = copiedScript.toFilePath();
+          if (compileToJS) {
+            destination = destination.replaceFirst(dartExtension, '.js');
+          }
           commands.add(_compileCommand(
               script.toFilePath(),
-              copiedScript.toFilePath().replaceFirst(dartExtension, '.js'),
+              destination,
               compiler,
               tempDir,
               info.optionsFromFile));
         }
       }
     }
     final Uri htmlFile = tempUri.resolve(filePath.filename);
     new File.fromUri(htmlFile).writeAsStringSync(contents);
 
     var htmlPath = _createUrlPathFromFile(new Path(htmlFile.toFilePath()));
@@ skipping 957 matching lines @@
       for (var key in PATH_REPLACEMENTS.keys) {
         if (path.startsWith(key)) {
           path = path.replaceFirst(key, PATH_REPLACEMENTS[key]);
           break;
         }
       }
     }
     return path;
   }
 }