Fix issues with protobuf equality comparisons

test/event_test.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.
 
 /// Tests event delivery using PbEventMixin.
 library event_test;
 
 import 'dart:typed_data' show Uint8List;
 
 import 'package:protobuf/protobuf.dart'
     show GeneratedMessage, Extension, ExtensionRegistry, PbFieldType;
 import 'package:protobuf/src/protobuf/mixins/event_mixin.dart'
     show PbEventMixin, PbFieldChange;
 import 'package:test/test.dart' show test, expect, predicate, same;
 
-import 'mock_util.dart' show MockMessage;
+import 'mock_util.dart' show MockMessage, mockInfo;
 
 class Rec extends MockMessage with PbEventMixin {
-  get className => "Rec";
-  Rec create() => new Rec();
+  get info_ => _info;
+  static final _info = mockInfo("Rec", () => new Rec());
 }
 
 Extension comment = new Extension("Rec", "comment", 5, PbFieldType.OS);
 
 main() {
   test('Events are sent when setting and clearing a non-repeated field', () {
     var log = makeLog();
     var r = new Rec();
     r.changes.listen((List<PbFieldChange> changes) {
       log.add(changes);
@@ skipping 260 matching lines @@
 
 List toTuple(PbFieldChange fc) {
   fixValue(v) {
     if (v is GeneratedMessage) {
       return "<msg>";
     }
     return v;
   }
   return [fc.tag, fixValue(fc.oldValue), fixValue(fc.newValue)];
 }