Replace @ReflectiveTestCase() with @reflectiveTest.

pkg/analysis_server/test/analysis/notification_highlights_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.analysis.notification.highlights;
 
 import 'dart:async';
 
 import 'package:analysis_server/src/constants.dart';
 import 'package:analysis_server/src/protocol.dart';
 import 'package:unittest/unittest.dart';
 
 import '../analysis_abstract.dart';
 import '../reflective_tests.dart';
 
 
 main() {
   runReflectiveTests(AnalysisNotificationHighlightsTest);
   runReflectiveTests(HighlightTypeTest);
 }
 
 
-@ReflectiveTestCase()
+@reflectiveTest
 class AnalysisNotificationHighlightsTest extends AbstractAnalysisTest {
   List<HighlightRegion> regions;
 
   void assertHasRawRegion(HighlightRegionType type, int offset, int length) {
     for (HighlightRegion region in regions) {
       if (region.offset == offset &&
           region.length == length &&
           region.type == type) {
         return;
       }
@@ skipping 976 matching lines @@
 
   void _addLibraryForTestPart() {
     addFile('$testFolder/my_lib.dart', '''
 library lib;
 part 'test.dart';
     ''');
   }
 }
 
 
-@ReflectiveTestCase()
+@reflectiveTest
 class HighlightTypeTest {
   void test_constructor() {
     expect(
         HighlightRegionType.CLASS,
         new HighlightRegionType(HighlightRegionType.CLASS.name));
   }
 
   void test_toString() {
     expect(HighlightRegionType.CLASS.toString(), 'HighlightRegionType.CLASS');
   }
 
   void test_valueOf_unknown() {
     expect(() {
       new HighlightRegionType('no-such-type');
     }, throws);
   }
 }