Added support for running dart2js tests on android devices

tools/test.dart

 #!/usr/bin/env dart
 // Copyright (c) 2013, 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.
 
 /**
  * This file is the entrypoint of the dart test suite.  This suite is used
  * to test:
  *
  *     1. the dart vm
@@ skipping 112 matching lines @@
     Map<String, RegExp> selectors = conf['selectors'];
     var useContentSecurityPolicy = conf['csp'];
     if (!listTests && runningBrowserTests) {
       // Start global http servers that serve the entire dart repo.
       // The http server is available on window.location.port, and a second
       // server for cross-domain tests can be found by calling
       // getCrossOriginPortNumber().
       var servers = new TestingServers(new Path(TestUtils.buildDir(conf)),
                                        useContentSecurityPolicy,
                                        conf['runtime']);
-      serverFutures.add(servers.startServers('127.0.0.1'));
+      serverFutures.add(servers.startServers(conf['local_ip']));
       conf['_servers_'] = servers;
     }
 
     // There should not be more than one InternetExplorerDriver instance
     // running at a time. For details, see
     // http://code.google.com/p/selenium/wiki/InternetExplorerDriver.
     if (conf['runtime'].startsWith('ie')) {
       maxBrowserProcesses = 1;
     }
 
@@ skipping 133 matching lines @@
 void main() {
   deleteTemporaryDartDirectories().then((_) {
     var optionsParser = new TestOptionsParser();
     var configurations = optionsParser.parse(new Options().arguments);
     if (configurations != null && configurations.length > 0) {
       testConfigurations(configurations);
     }
   });
 }