Stop using Element.unit directly.

pkg/analysis_server/test/services/refactoring/convert_method_to_getter_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.refactoring.convert_method_to_getter;
 
 import 'dart:async';
 
-import 'package:analysis_server/plugin/protocol/protocol.dart' hide ElementKind;
+import 'package:analysis_server/plugin/protocol/protocol.dart'
+    show RefactoringProblemSeverity, SourceChange;
 import 'package:analysis_server/src/services/correction/status.dart';
 import 'package:analysis_server/src/services/refactoring/refactoring.dart';
 import 'package:analyzer/dart/element/element.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
 import 'abstract_refactoring.dart';
 
 main() {
   defineReflectiveSuite(() {
     defineReflectiveTests(ConvertMethodToGetterTest);
@@ skipping 178 matching lines @@
     this.refactoringChange = refactoringChange;
     assertTestChangeResult(expectedCode);
   }
 
   void _createRefactoring(String elementName) {
     ExecutableElement element = findElement(elementName);
     _createRefactoringForElement(element);
   }
 
   void _createRefactoringForElement(ExecutableElement element) {
-    refactoring = new ConvertMethodToGetterRefactoring(searchEngine, element);
+    refactoring = new ConvertMethodToGetterRefactoring(
+        searchEngine, getResolvedUnitWithElement, element);
   }
 
   void _createRefactoringForString(String search) {
     ExecutableElement element = findNodeElementAtString(search);
     _createRefactoringForElement(element);
   }
 }