Add support for running browser tests to the test runner.

lib/unittest.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.
 
 library unittest;
 
 import 'dart:async';
 
 import 'package:path/path.dart' as p;
 
@@ skipping 30 matching lines @@
   var declarer = Zone.current[#unittest.declarer];
   if (declarer != null) return declarer;
   if (_globalDeclarer != null) return _globalDeclarer;
 
   // Since there's no Zone-scoped declarer, the test file is being run directly.
   // In order to run the tests, we set up our own Declarer via
   // [_globalDeclarer], and schedule a microtask to run the tests once they're
   // finished being defined.
   _globalDeclarer = new Declarer();
   scheduleMicrotask(() {
-    var suite = new Suite(p.prettyUri(Uri.base), _globalDeclarer.tests);
+    var suite = new Suite(_globalDeclarer.tests,
+        path: p.prettyUri(Uri.base),
+        platform: "VM");
     // TODO(nweiz): Set the exit code on the VM when issue 6943 is fixed.
     new NoIoCompactReporter([suite], color: true).run();
   });
   return _globalDeclarer;
 }
 
 // TODO(nweiz): This and other top-level functions should throw exceptions if
 // they're called after the declarer has finished declaring.
 void test(String description, body()) => _declarer.test(description, body);
 
@@ skipping 79 matching lines @@
 void setSoloTest(int id) {}
 
 @deprecated
 void enableTest(int id) {}
 
 @deprecated
 void disableTest(int id) {}
 
 @deprecated
 withTestEnvironment(callback()) => callback();