Make subclasses of AbstractContextTest asynchronous.

pkg/analysis_server/test/services/correction/status_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.status;
 
 import 'package:analysis_server/src/protocol_server.dart' hide Element;
 import 'package:analysis_server/src/services/correction/source_range.dart';
 import 'package:analysis_server/src/services/correction/status.dart';
 import 'package:analysis_server/src/services/search/search_engine.dart';
 import 'package:analysis_server/src/services/search/search_engine_internal.dart';
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/src/generated/source.dart';
 import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
 import '../../abstract_single_unit.dart';
 
 main() {
   defineReflectiveSuite(() {
     defineReflectiveTests(RefactoringLocationTest);
     defineReflectiveTests(RefactoringStatusTest);
   });
 }
 
 @reflectiveTest
 class RefactoringLocationTest extends AbstractSingleUnitTest {
-  void test_createLocation_forElement() {
-    resolveTestUnit('class MyClass {}');
+  test_createLocation_forElement() async {
+    await resolveTestUnit('class MyClass {}');
     Element element = findElement('MyClass');
     // check
     Location location = newLocation_fromElement(element);
     expect(location.file, '/test.dart');
     expect(location.offset, 6);
     expect(location.length, 7);
     expect(location.startLine, 1);
     expect(location.startColumn, 7);
   }
 
-  void test_createLocation_forMatch() {
-    resolveTestUnit('class MyClass {}');
+  test_createLocation_forMatch() async {
+    await resolveTestUnit('class MyClass {}');
     Element element = findElement('MyClass');
     SourceRange range = rangeElementName(element);
     SearchMatch match = new SearchMatchImpl(
         context,
         element.library.source.uri.toString(),
         element.source.uri.toString(),
         null,
         range,
         true,
         false);
     // check
     Location location = newLocation_fromMatch(match);
     expect(location.file, '/test.dart');
     expect(location.offset, range.offset);
     expect(location.length, range.length);
   }
 
-  void test_createLocation_forNode() {
-    resolveTestUnit('''
+  test_createLocation_forNode() async {
+    await resolveTestUnit('''
 main() {
 }
 ''');
     AstNode node = findNodeAtString('main');
     // check
     Location location = newLocation_fromNode(node);
     expect(location.file, '/test.dart');
     expect(location.offset, node.offset);
     expect(location.length, node.length);
   }
 
-  void test_createLocation_forUnit() {
-    resolveTestUnit('');
+  test_createLocation_forUnit() async {
+    await resolveTestUnit('');
     SourceRange range = rangeStartLength(10, 20);
     // check
     Location location = newLocation_fromUnit(testUnit, range);
     expect(location.file, '/test.dart');
     expect(location.offset, range.offset);
     expect(location.length, range.length);
   }
 }
 
 @reflectiveTest
@@ skipping 141 matching lines @@
     expect(refactoringStatus.severity, RefactoringProblemSeverity.FATAL);
     expect(refactoringStatus.message, 'msg');
   }
 
   void test_newWarning() {
     RefactoringStatus refactoringStatus = new RefactoringStatus.warning('msg');
     expect(refactoringStatus.severity, RefactoringProblemSeverity.WARNING);
     expect(refactoringStatus.message, 'msg');
   }
 }