Get dartdoc in the SDK and working correctly.

utils/tests/dartdoc/test_config.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.
-
-#library("dartdoc_test_config");
-
-#import("../../../tools/testing/dart/test_suite.dart");
-
-class DartdocTestSuite extends StandardTestSuite {
-  DartdocTestSuite(Map configuration)
-      : super(configuration,
-              "dartdoc",
-              "utils/tests/dartdoc/src",
-              ["utils/tests/dartdoc/dartdoc.status"]);
-
-  List<String> additionalOptions(String filename) {
-    if (configuration['component'].startsWith('frog')) {
-      return ['--js_cmd=node --crankshaft'];
-    } else {
-      return [];
-    }
-  }
-
-
-  bool isTestFile(String filename) => filename.endsWith("_tests.dart");
-}