Replace @ReflectiveTestCase() with @reflectiveTest.

pkg/analysis_server/test/analysis/notification_overrides_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.overrides;
 
 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() {
   groupSep = ' | ';
   runReflectiveTests(AnalysisNotificationOverridesTest);
 }
 
 
-@ReflectiveTestCase()
+@reflectiveTest
 class AnalysisNotificationOverridesTest extends AbstractAnalysisTest {
   List<Override> overridesList;
   Override override;
 
   /**
    * Asserts that there is an overridden interface [OverriddenMember] at the
    * offset of [search] in [override].
    */
   void assertHasInterfaceMember(String search) {
     int offset = findOffset(search);
@@ skipping 303 matching lines @@
   set fff(x) {} // in B
 }
 ''');
     return prepareOverrides().then((_) {
       assertHasOverride('fff(x) {} // in B');
       assertHasSuperElement('fff(x) {} // in A');
       assertNoInterfaceMembers();
     });
   }
 }