anchor.diff:  
   
   class Location {
  -  core.String fullName;
  -
     core.int offset;
   
  +  core.String sourceName;
  +
   
     Location();
   
     Location.fromJson(core.Map _json) {
  -    if (_json.containsKey("fullName")) {
  -      fullName = _json["fullName"];
  -    }
       if (_json.containsKey("offset")) {
         offset = _json["offset"];
       }
  -  }
  -
  -  core.Map toJson() {
  -    var _json = new core.Map();
  -    if (fullName != null) {
  -      _json["fullName"] = fullName;
  -    }
  +    if (_json.containsKey("sourceName")) {
  +      sourceName = _json["sourceName"];
  +    }
  +  }
  +
  +  core.Map toJson() {
  +    var _json = new core.Map();
       if (offset != null) {
         _json["offset"] = offset;
  +    }
  +    if (sourceName != null) {
  +      _json["sourceName"] = sourceName;
       }
       return _json;
     }
  
positive.code:   }
  
    /**
     * Request parameters:
     *
     * [name] - Query parameter: 'name'.
  
negative.code: 
      var _response = _requester.request(_url,
                                         "GET",
                                         body: _body,
                                         queryParams: _queryParams,
                                         uploadOptions: _uploadOptions,
                                         uploadMedia: _uploadMedia,
                                         downloadOptions: _downloadOptions);
      return _response.then((data) => new FixesResponse.fromJson(data));
    }
  
    /**
     * Get any quick fixes for the given source code location.
     *
     * [request] - The metadata request object.
     *
     * Request parameters:
     *
     * Completes with a [FixesResponse].
     *
     * Completes with a [commons.ApiRequestError] if the API endpoint returned an
     * error.
     *
     * If the used [http.Client] completes with an error when making a REST call,
     * this method  will complete with the same error.
     */
    async.Future<FixesResponse> fixesMulti(SourcesRequest request) {
      var _url = null;
      var _queryParams = new core.Map();
      var _uploadMedia = null;
      var _uploadOptions = null;
      var _downloadOptions = commons.DownloadOptions.Metadata;
      var _body = null;
  
      if (request != null) {
        _body = convert.JSON.encode((request).toJson());
      }
  
  
      _url = 'fixesMulti';
  
      var _response = _requester.request(_url,
                                         "POST",
                                         body: _body,
                                         queryParams: _queryParams,
                                         uploadOptions: _uploadOptions,
  