abort completion request - fixes #24271

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';
 import 'package:analysis_server/src/analysis_server.dart';
@@ skipping 153 matching lines @@
     int offset = testCode.indexOf(search);
     expect(offset, isNot(-1));
     return offset;
   }
 
   /**
    * Validates that the given [request] is handled successfully.
    */
   Response handleSuccessfulRequest(Request request) {
     Response response = handler.handleRequest(request);
-    expect(response, isResponseSuccess('0'));
+    expect(response, isResponseSuccess(request.id));
     return response;
   }
 
   String modifyTestFile(String content) {
     addFile(testFile, content);
     this.testCode = content;
     return testFile;
   }
 
   void processNotification(Notification notification) {
@@ skipping 42 matching lines @@
   }
 
   /**
    * Completes with a successful [Response] for the given [request].
    * Otherwise fails.
    */
   Future<Response> waitResponse(Request request) async {
     return serverChannel.sendRequest(request);
   }
 }