Add 'containingClassDescription' to HoverInformation.

pkg/analysis_server/test/integration/protocol_matchers.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.
 //
 // This file has been automatically generated.  Please do not edit it manually.
 // To regenerate the file, use the script
 // "pkg/analysis_server/tool/spec/generate_files".
 
 /**
  * Matchers for data types defined in the analysis server API
@@ skipping 1428 matching lines @@
 ]);
 
 /**
  * HoverInformation
  *
  * {
  *   "offset": int
  *   "length": int
  *   "containingLibraryPath": optional String
  *   "containingLibraryName": optional String
+ *   "containingClassDescription": optional String
  *   "dartdoc": optional String
  *   "elementDescription": optional String
  *   "elementKind": optional String
  *   "parameter": optional String
  *   "propagatedType": optional String
  *   "staticType": optional String
  * }
  */
 final Matcher isHoverInformation = new LazyMatcher(() => new MatchesJsonObject(
   "HoverInformation", {
     "offset": isInt,
     "length": isInt
   }, optionalFields: {
     "containingLibraryPath": isString,
     "containingLibraryName": isString,
+    "containingClassDescription": isString,
     "dartdoc": isString,
     "elementDescription": isString,
     "elementKind": isString,
     "parameter": isString,
     "propagatedType": isString,
     "staticType": isString
   }));
 
 /**
  * LinkedEditGroup
@@ skipping 703 matching lines @@
  *
  * {
  *   "newName": String
  * }
  */
 final Matcher isRenameOptions = new LazyMatcher(() => new MatchesJsonObject(
   "rename options", {
     "newName": isString
   }));