Use generated classes to create requests in analysis server unit tests.

pkg/analysis_server/lib/src/protocol.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 protocol;
 
 import 'dart:collection';
 import 'dart:convert' show JsonDecoder;
 
 import 'package:analysis_server/src/services/json.dart';
@@ skipping 89 matching lines @@
    * such parameter associated with this request.
    */
   RequestDatum getRequiredParameter(String name) {
     if (!params.containsKey(name)) {
       throw new RequestFailure(new Response.missingRequiredParameter(this, name));
     }
     return new RequestDatum(this, name, params[name]);
   }
 
   /**
-   * Set the value of the parameter with the given [name] to the given [value].
-   */
-  void setParameter(String name, Object value) {
-    params[name] = value;
-  }
-
-  /**
    * Return a table representing the structure of the Json object that will be
    * sent to the client to represent this response.
    */
   Map<String, Object> toJson() {
     Map<String, Object> jsonObject = new HashMap<String, Object>();
     jsonObject[ID] = id;
     jsonObject[METHOD] = method;
     if (params.isNotEmpty) {
       jsonObject[PARAMS] = params;
     }
@@ skipping 760 matching lines @@
  */
 _toJson(Object value) {
   if (value is HasToJson) {
     return value.toJson();
   }
   if (value is Iterable) {
     return value.map((item) => _toJson(item)).toList();
   }
   return value;
 }