Add tests for edit.sortMembers and edit.organizeDirectives.

pkg/analysis_server/test/integration/integration_tests.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.integration.analysis;
 
 import 'dart:async';
 import 'dart:collection';
 import 'dart:convert';
 import 'dart:io';
@@ skipping 275 matching lines @@
 
 /**
  * An error result from a server request.
  */
 class ServerErrorMessage {
   final Map message;
 
   ServerErrorMessage(this.message);
 
   dynamic get error => message['error'];
+
+  String toString() => message.toString();
 }
 
 /**
  * Wrapper class for Matcher which doesn't create the underlying Matcher object
  * until it is needed.  This is necessary in order to create matchers that can
  * refer to themselves (so that recursive data structures can be represented).
  */
 class LazyMatcher implements Matcher {
   /**
    * Callback that will be used to create the matcher the first time it is
@@ skipping 676 matching lines @@
   void populateMismatches(item, List<MismatchDescriber> mismatches);
 
   /**
    * Create a [MismatchDescriber] describing a mismatch with a simple string.
    */
   MismatchDescriber simpleDescription(String description) =>
       (Description mismatchDescription) {
         mismatchDescription.add(description);
       };
 }