Pass actual TestPlatform and OperatingSystem values to Suite.

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.
 
 library test.runner.reporter.no_io_compact;
 
 import 'dart:isolate';
 
 import '../../backend/live_test.dart';
 import '../../backend/state.dart';
@@ skipping 258 matching lines @@
   /// This differs from the test's own description in that it may also include
   /// the suite's name.
   String _description(LiveTest liveTest) {
     var name = liveTest.test.name;
 
     if (_printPath && liveTest.suite.path != null) {
       name = "${liveTest.suite.path}: $name";
     }
 
     if (_printPlatform && liveTest.suite.platform != null) {
-      name = "[${liveTest.suite.platform}] $name";
+      name = "[${liveTest.suite.platform.name}] $name";
     }
 
     if (liveTest.suite is LoadSuite) name = "$_bold$_gray$name$_noColor";
 
     return name;
   }
 }