Implement 'analysis.analyzedFiles' notification with the new analysis driver.

pkg/analysis_server/test/analysis_abstract.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.domain.analysis.abstract;
 
 import 'dart:async';
 
 import 'package:analysis_server/plugin/protocol/protocol.dart'
     hide AnalysisOptions;
@@ skipping 179 matching lines @@
    * Validates that the given [request] is handled successfully.
    */
   Response handleSuccessfulRequest(Request request, {RequestHandler handler}) {
     handler ??= this.handler;
     Response response = handler.handleRequest(request);
     expect(response, isResponseSuccess(request.id));
     return response;
   }
 
   String modifyTestFile(String content) {
-    addFile(testFile, content);
+    String path = resourceProvider.convertPath(testFile);
+    resourceProvider.updateFile(path, content);
     this.testCode = content;
     return testFile;
   }
 
   void processNotification(Notification notification) {
     if (notification.event == SERVER_ERROR) {
       var params = new ServerErrorParams.fromNotification(notification);
       serverErrors.add(params);
     }
   }
@@ skipping 39 matching lines @@
   }
 
   /**
    * Completes with a successful [Response] for the given [request].
    * Otherwise fails.
    */
   Future<Response> waitResponse(Request request) async {
     return serverChannel.sendRequest(request);
   }
 }