Make more use of generated code in analysis server.

pkg/analysis_server/lib/src/domain_server.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 domain.server;
 
 import 'package:analysis_server/src/analysis_server.dart';
 import 'package:analysis_server/src/constants.dart';
 import 'package:analysis_server/src/protocol.dart';
 import 'package:analysis_server/src/protocol2.dart';
@@ skipping 10 matching lines @@
 
   /**
    * Initialize a newly created handler to handle requests for the given [server].
    */
   ServerDomainHandler(this.server);
 
   /**
    * Return the version number of the analysis server.
    */
   Response getVersion(Request request) {
-    Response response = new Response(request.id);
-    response.setResult(VERSION, '0.0.1');
-    return response;
+    return new ServerGetVersionResult('0.0.1').toResponse(request.id);
   }
 
   @override
   Response handleRequest(Request request) {
     try {
       String requestName = request.method;
       if (requestName == SERVER_GET_VERSION) {
         return getVersion(request);
       } else if (requestName == SERVER_SET_SUBSCRIPTIONS) {
           return setSubscriptions(request);
@@ skipping 72 matching lines @@
 
   /**
    * Cleanly shutdown the analysis server.
    */
   Response shutdown(Request request) {
     server.shutdown();
     Response response = new Response(request.id);
     return response;
   }
 }