Issue 27130. Fix applying changes to .analysis_options on save.

pkg/analysis_server/test/analysis_server_test.dart

 // Copyright (c) 2014, 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.analysis_server;
 
 import 'dart:async';
 
 import 'package:analysis_server/plugin/protocol/protocol.dart';
 import 'package:analysis_server/src/analysis_server.dart';
@@ skipping 511 matching lines @@
 
   Future test_unknownRequest() {
     server.handlers = [new EchoHandler()];
     var request = new Request('my22', 'randomRequest');
     return channel.sendRequest(request).then((Response response) {
       expect(response.id, equals('my22'));
       expect(response.error, isNotNull);
     });
   }
 
-  test_watch_modifyFile_hasOverlay() async {
-    server.serverServices.add(ServerService.STATUS);
-    // configure the project
-    String projectPath = '/root';
-    String filePath = '/root/test.dart';
-    resourceProvider.newFolder(projectPath);
-    resourceProvider.newFile(filePath, '// 111');
-    server.setAnalysisRoots('0', ['/root'], [], {});
-    await pumpEventQueue();
-    // add overlay
-    server.updateContent('1', {filePath: new AddContentOverlay('// 222')});
-    await pumpEventQueue();
-    // update the file
-    channel.notificationsReceived.clear();
-    resourceProvider.modifyFile(filePath, '// 333');
-    await pumpEventQueue();
-    // the file has an overlay, so the file-system change was ignored
-    expect(channel.notificationsReceived.any((notification) {
-      return notification.event == SERVER_STATUS;
-    }), isFalse);
-  }
-
   void _assertContextOfFolder(
       AnalysisContext context, String expectedFolderPath) {
     Folder expectedFolder = resourceProvider.newFolder(expectedFolderPath);
     ContextInfo expectedContextInfo =
         (server.contextManager as ContextManagerImpl)
             .getContextInfoFor(expectedFolder);
     expect(expectedContextInfo, isNotNull);
     expect(context, same(expectedContextInfo.context));
   }
 
@@ skipping 27 matching lines @@
   _MockServerOperation(this.context);
 
   @override
   ServerOperationPriority get priority => ServerOperationPriority.ANALYSIS;
 
   @override
   void perform(AnalysisServer server) {
     isComplete = true;
   }
 }