Restore partial analysis of analysis options files

pkg/analysis_server/test/src/plugin/plugin_manager_test.dart

 // Copyright (c) 2017, 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:io' as io;
 
 import 'package:analysis_server/src/plugin/notification_manager.dart';
 import 'package:analysis_server/src/plugin/plugin_manager.dart';
 import 'package:analyzer/context/context_root.dart';
@@ skipping 652 matching lines @@
     }
     packagesPath = path.dirname(packagesPath);
     packagesPath = path.dirname(packagesPath);
     return path.join(packagesPath, '.packages');
   }
 }
 
 class TestNotificationManager implements NotificationManager {
   List<Notification> notifications = <Notification>[];
 
+  Map<String, Map<String, List<AnalysisError>>> recordedErrors =
+      <String, Map<String, List<AnalysisError>>>{};
+
   @override
   void handlePluginNotification(String pluginId, Notification notification) {
     notifications.add(notification);
   }
 
   @override
   noSuchMethod(Invocation invocation) {
     fail('Unexpected invocation of ${invocation.memberName}');
   }
+
+  @override
+  void recordAnalysisErrors(
+      String pluginId, String filePath, List<AnalysisError> errorData) {
+    recordedErrors.putIfAbsent(
+        pluginId, () => <String, List<AnalysisError>>{})[filePath] = errorData;
+  }
 }
 
 class TestServerCommunicationChannel implements ServerCommunicationChannel {
   final PluginSession session;
   int closeCount = 0;
   List<Request> sentRequests = <Request>[];
 
   TestServerCommunicationChannel(this.session) {
     session.channel = this;
   }
@@ skipping 15 matching lines @@
   }
 
   @override
   void sendRequest(Request request) {
     sentRequests.add(request);
     if (request.method == 'plugin.shutdown') {
       session.handleOnDone();
     }
   }
 }