Fix protocol for EXTRACT_LOCAL_VARIABLE and coveringExpressionOffsets/lengths.

pkg/analysis_server/test/edit/refactoring_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.refactoring;
 
 import 'dart:async';
 
 import 'package:analysis_server/plugin/protocol/protocol.dart';
 import 'package:analysis_server/src/edit/edit_domain.dart';
@@ skipping 1863 matching lines @@
 
   test_getAvailableRefactorings() async {
     addTestFile('''
 main() {
   print(1 + 2);
 }
 ''');
     await waitForTasksFinished();
     Request request =
         new EditGetAvailableRefactoringsParams(testFile, 0, 0).toRequest('0');
-    return _assertErrorResposeNoIndex(request);
+    return _assertErrorResponseNoIndex(request);
   }
 
   test_getRefactoring_noSearchEngine() async {
     addTestFile('''
 main() {
   print(1 + 2);
 }
 ''');
     await waitForTasksFinished();
     Request request = new EditGetRefactoringParams(
             RefactoringKind.EXTRACT_LOCAL_VARIABLE, testFile, 0, 0, true)
         .toRequest('0');
-    return _assertErrorResposeNoIndex(request);
+    return _assertErrorResponseNoIndex(request);
   }
 
-  _assertErrorResposeNoIndex(Request request) async {
+  _assertErrorResponseNoIndex(Request request) async {
     Response response = await serverChannel.sendRequest(request);
     expect(response.error, isNotNull);
     expect(response.error.code, RequestErrorCode.NO_INDEX_GENERATED);
   }
 }