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

pkg/analysis_server/test/edit/fixes_test.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.edit.fixes;
 
 import 'dart:async';
 
 import 'package:analysis_server/src/constants.dart';
 import 'package:analysis_server/src/edit/edit_domain.dart';
 import 'package:analysis_server/src/protocol.dart';
+import 'package:analysis_server/src/protocol2.dart';
 import 'package:analysis_testing/reflective_tests.dart';
 import 'package:unittest/unittest.dart' hide ERROR;
 
 import '../analysis_abstract.dart';
 
 
 main() {
   groupSep = ' | ';
   runReflectiveTests(FixesTest);
 }
 
 
 @ReflectiveTestCase()
 class FixesTest extends AbstractAnalysisTest {
   @override
   void setUp() {
     super.setUp();
     createProject();
     handler = new EditDomainHandler(server);
   }
 
   Future test_hasFixes() {
     addTestFile('''
 main() {
   print(42)
 }
 ''');
     return waitForTasksFinished().then((_) {
-      Request request = new Request('0', EDIT_GET_FIXES);
-      request.setParameter(FILE, testFile);
-      request.setParameter(OFFSET, findOffset('print'));
+      Request request = new EditGetFixesParams(testFile,
+          findOffset('print')).toRequest('0');
       Response response = handleSuccessfulRequest(request);
       List<Map<String, Object>> errorFixesJsonList = response.getResult(FIXES);
       expect(errorFixesJsonList, hasLength(1));
       {
         Map<String, Object> fixes = errorFixesJsonList[0];
         Map<String, Object> error = fixes[ERROR];
         expect(error[SEVERITY], 'ERROR');
         expect(error[TYPE], 'SYNTACTIC_ERROR');
         expect(fixes[FIXES], hasLength(1));
       }
     });
   }
 }