Add in-process http server to the dart test scripts.

pkg/intl/test/date_time_format_http_request_test.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // or details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 /**
  * Test date formatting and parsing using locale data read via an http request
  * to a server.
  */
 
-// TODO(alanknight): It would be nice if there were a more general facility
-// than this and it could be replaced, possibly the things Graham is working on.
-// The following magical comments will cause the test code run via test.py
-// to add an extra command starting up a web server that will serve the
-// files we are looking for. "dart" will be replaced by the current dart
-// VM, and in arguments, $dartDir will be replaced by the current Dart
-// root directory.
-// ExtraCommand=dart
-// ExtraCommandArgs=$dartDir/pkg/intl/test/start_web_server.dart
 #library('date_time_format_http_request_test');
 
 #import('../lib/intl.dart');
 #import('../lib/date_symbol_data_http_request.dart');
 #import('date_time_format_test_core.dart');
 #import('dart:html');
 #import('../../../pkg/unittest/unittest.dart');
 
-var url = "http://localhost:8000/dates/";
+var url = "http://localhost:9876/pkg/intl/lib/src/data/dates/";
 
 main() {
   // Initialize one locale just so we know what the list is.
   test('Run everything', () {
     initializeDateFormatting("en_US", url).then(expectAsync1(runEverything));});
 }
 
 void runEverything(_) {
   // Initialize all locales and wait for them to finish before running tests.
   var futures = DateFormat.allLocalesWithSymbols().map(
       (locale) => initializeDateFormatting(locale, url));
   Futures.wait(futures).then(expectAsync1((_) {
       runDateTests(smallSetOfLocales());
       shutDown();}));
 }
 
 void shutDown() {
   // The tiny web server knows to use this request as a cue to terminate.
   var source = '${url}terminate';
   var request = new HttpRequest.get(source, (_) {});
-}
+}