Convert refactoring tests to use 'await'.

pkg/analysis_server/test/services/refactoring/rename_constructor_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.rename_constructor;
 
 import 'package:analysis_server/src/protocol.dart';
+import 'package:analysis_server/src/services/correction/status.dart';
 import 'package:analyzer/src/generated/ast.dart';
 import 'package:analyzer/src/generated/element.dart';
 import 'package:unittest/unittest.dart';
 
 import '../../reflective_tests.dart';
 import 'abstract_rename.dart';
 
 
 main() {
   groupSep = ' | ';
   runReflectiveTests(RenameConstructorTest);
 }
 
 
 @reflectiveTest
 class RenameConstructorTest extends RenameRefactoringTest {
-  test_checkFinalConditions_hasMember_constructor() {
+  test_checkFinalConditions_hasMember_constructor() async {
     indexTestUnit('''
 class A {
   A.test() {}
   A.newName() {} // existing
 }
 ''');
     _createConstructorDeclarationRefactoring('test() {}');
     // check status
     refactoring.newName = 'newName';
-    return refactoring.checkFinalConditions().then((status) {
-      assertRefactoringStatus(
-          status,
-          RefactoringProblemSeverity.ERROR,
-          expectedMessage: "Class 'A' already declares constructor with name 'newName'.",
-          expectedContextSearch: 'newName() {} // existing');
-    });
+    RefactoringStatus status = await refactoring.checkFinalConditions();
+    assertRefactoringStatus(
+        status,
+        RefactoringProblemSeverity.ERROR,
+        expectedMessage: "Class 'A' already declares constructor with name 'newName'.",
+        expectedContextSearch: 'newName() {} // existing');
   }
 
-  test_checkFinalConditions_hasMember_method() {
+  test_checkFinalConditions_hasMember_method() async {
     indexTestUnit('''
 class A {
   A.test() {}
   newName() {} // existing
 }
 ''');
     _createConstructorDeclarationRefactoring('test() {}');
     // check status
     refactoring.newName = 'newName';
-    return refactoring.checkFinalConditions().then((status) {
-      assertRefactoringStatus(
-          status,
-          RefactoringProblemSeverity.ERROR,
-          expectedMessage: "Class 'A' already declares method with name 'newName'.",
-          expectedContextSearch: 'newName() {} // existing');
-    });
+    RefactoringStatus status = await refactoring.checkFinalConditions();
+    assertRefactoringStatus(
+        status,
+        RefactoringProblemSeverity.ERROR,
+        expectedMessage: "Class 'A' already declares method with name 'newName'.",
+        expectedContextSearch: 'newName() {} // existing');
   }
 
   test_checkNewName() {
     indexTestUnit('''
 class A {
   A.test() {}
 }
 ''');
     createRenameRefactoringAtString('test() {}');
     expect(refactoring.oldName, 'test');
@@ skipping 118 matching lines @@
 }
 ''');
   }
 
   void _createConstructorDeclarationRefactoring(String search) {
     ConstructorElement element =
         findNodeElementAtString(search, (node) => node is ConstructorDeclaration);
     createRenameRefactoringForElement(element);
   }
 }