Finish modifying analysis server to make use of code generation.

pkg/analysis_server/test/services/correction/change_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.services.correction.change;
 
 import 'package:analysis_server/src/constants.dart';
-import 'package:analysis_server/src/protocol2.dart';
+import 'package:analysis_server/src/protocol.dart';
 import 'package:analysis_testing/reflective_tests.dart';
 import 'package:analyzer/src/generated/source.dart';
 import 'package:unittest/unittest.dart';
 
 
 main() {
   groupSep = ' | ';
   runReflectiveTests(ChangeTest);
   runReflectiveTests(EditTest);
   runReflectiveTests(FileEditTest);
@@ skipping 309 matching lines @@
 
   void test_toJson() {
     Position position = new Position('/test.dart', 1);
     var expectedJson = {
       FILE: '/test.dart',
       OFFSET: 1
     };
     expect(position.toJson(), expectedJson);
   }
 }