Add support for watch events and error notifications

pkg/analysis_server/test/analysis_abstract.dart

Index: pkg/analysis_server/test/analysis_abstract.dart
diff --git a/pkg/analysis_server/test/analysis_abstract.dart b/pkg/analysis_server/test/analysis_abstract.dart
index c037b95d8fa1edade6c36efd75db71febc8b8467..b1ff59eb29862241b1b876cfbf939bdac87f1b48 100644
--- a/pkg/analysis_server/test/analysis_abstract.dart
+++ b/pkg/analysis_server/test/analysis_abstract.dart
@@ -27,6 +27,7 @@ import 'package:analyzer_plugin/src/protocol/protocol_internal.dart' as plugin;
 import 'package:plugin/manager.dart';
 import 'package:plugin/plugin.dart';
 import 'package:test/test.dart';
+import 'package:watcher/src/watch_event.dart';

[scheglov, 2017/04/26 15:55:18]

Maybe package:watcher/watcher.dart?

[Brian Wilkerson, 2017/04/26 16:35:55]

Done (We really need to fix the quick fixes, etc. to not suggest private
libraries when there is a public option!)

 
 import 'mock_sdk.dart';
 import 'mocks.dart';
@@ -308,12 +309,18 @@ class TestPluginManager implements PluginManager {
   }
 
   @override
-  Map<PluginInfo, Future<plugin.Response>> broadcast(
+  Map<PluginInfo, Future<plugin.Response>> broadcastRequest(
       analyzer.ContextRoot contextRoot, plugin.RequestParams params) {
     return broadcastResults ?? <PluginInfo, Future<plugin.Response>>{};
   }
 
   @override
+  Future<List<Future<plugin.Response>>> broadcastWatchEvent(
+      WatchEvent watchEvent) async {
+    return <Future<plugin.Response>>[];
+  }
+
+  @override
   List<PluginInfo> pluginsForContextRoot(analyzer.ContextRoot contextRoot) {
     fail('Unexpected invocation of pluginsForContextRoot');
     return null;