Add a dedicated Result for skipped tests.

lib/src/runner/reporter/expanded.dart

 // Copyright (c) 2015, 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.
 
 import 'dart:async';
 import 'dart:isolate';
 
 import '../../backend/live_test.dart';
 import '../../backend/state.dart';
 import '../../utils.dart';
@@ skipping 176 matching lines @@
     _subscriptions.add(liveTest.onPrint.listen((line) {
       _progressLine(_description(liveTest));
       print(line);
     }));
   }
 
   /// A callback called when [liveTest]'s state becomes [state].
   void _onStateChange(LiveTest liveTest, State state) {
     if (state.status != Status.complete) return;
 
-    if (liveTest.test.metadata.skip &&
+    if (state.result == Result.skipped &&
         liveTest.test.metadata.skipReason != null) {
       print(indent('${_yellow}Skip: ${liveTest.test.metadata.skipReason}'
           '$_noColor'));
     } else if (_engine.active.isNotEmpty) {
       // If any tests are running, display the name of the oldest active
       // test.
       _progressLine(_description(_engine.active.first));
     }
   }
 
@@ skipping 113 matching lines @@
 
     if (_printPlatform && liveTest.suite.platform != null) {
       name = "[${liveTest.suite.platform.name}] $name";
     }
 
     if (liveTest.suite is LoadSuite) name = "$_bold$_gray$name$_noColor";
 
     return name;
   }
 }