Add metadata to messages emitted by live tests.

lib/src/runner/remote_listener.dart

 // Copyright (c) 2016, 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 'package:stream_channel/stream_channel.dart';
 
 import '../backend/declarer.dart';
 import '../backend/group.dart';
@@ skipping 165 matching lines @@
     });
 
     liveTest.onError.listen((asyncError) {
       channel.sink.add({
         "type": "error",
         "error": RemoteException.serialize(
             asyncError.error, asyncError.stackTrace)
       });
     });
 
-    liveTest.onPrint.listen((line) {
-      if (_printZone != null) _printZone.print(line);
-      channel.sink.add({"type": "print", "line": line});
+    liveTest.onMessage.listen((message) {
+      if (_printZone != null) _printZone.print(message.text);
+      channel.sink.add({
+        "type": "message",
+        "message-type": message.type.name,
+        "text": message.text
+      });
     });
 
     liveTest.run().then((_) => channel.sink.add({"type": "complete"}));
   }
 }