Upload new Dart binaries and re-enable unit tests for test scripts.

tools/testing/dart/http_server.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 http_server;
 
 import 'dart:io';
 import 'dart:isolate';
 import 'test_suite.dart';  // For TestUtils.
 import '../../../pkg/args/lib/args.dart';
@@ skipping 13 matching lines @@
       defaultsTo: 'ia32');
   parser.addFlag('help', abbr: 'h', negatable: false,
       help: 'Print this usage information.');
   var args = parser.parse(new Options().arguments);
   if (args['help']) {
     print(parser.getUsage());
   } else {
     // Pretend we're running test.dart so that TestUtils doesn't get confused
     // about the "current directory." This is only used if we're trying to run
     // this file independently for local testing.
-    TestUtils.testScriptPath = new Path.fromNative(
-        new Options().script).directoryPath.join(
-        new Path('../../test.dart')).canonicalize().toNativePath();
+    TestUtils.testScriptPath = new Path(new Options().script)
+        .directoryPath
+        .join(new Path('../../test.dart'))
+        .canonicalize()
+        .toNativePath();
     TestingServerRunner.setPackageRootDir({'mode': args['mode'],
         'arch': args['arch'], 'system': Platform.operatingSystem,
         'build_directory': ''});
 
     TestingServerRunner.startHttpServer('127.0.0.1',
         port: int.parse(args['port']));
     print('Server listening on port '
           '${TestingServerRunner.serverList[0].port}.');
     TestingServerRunner.startHttpServer('127.0.0.1',
         allowedPort: TestingServerRunner.serverList[0].port, port:
@@ skipping 87 matching lines @@
     });
 
     httpServer.listen(host, port);
     serverList.add(httpServer);
   }
 
   static terminateHttpServers() {
     for (var server in serverList) server.close();
   }
 }