Use package:test_reflective_loader instead of reflective_tests.

pkg/analysis_server/test/analysis/notification_outline_test.dart

Index: pkg/analysis_server/test/analysis/notification_outline_test.dart
diff --git a/pkg/analysis_server/test/analysis/notification_outline_test.dart b/pkg/analysis_server/test/analysis/notification_outline_test.dart
index cae3f7b6dd039b3e77b2836f4f87b19e14820476..6311762e94bb6c70177bd552aef7bc1b03dcad47 100644
--- a/pkg/analysis_server/test/analysis/notification_outline_test.dart
+++ b/pkg/analysis_server/test/analysis/notification_outline_test.dart
@@ -8,13 +8,13 @@ import 'dart:async';
 
 import 'package:analysis_server/src/constants.dart';
 import 'package:analysis_server/src/protocol.dart';
+import 'package:test_reflective_loader/test_reflective_loader.dart';
 import 'package:unittest/unittest.dart';
 
 import '../analysis_abstract.dart';
-import '../reflective_tests.dart';
 
 main() {
-  runReflectiveTests(_AnalysisNotificationOutlineTest);
+  defineReflectiveTests(_AnalysisNotificationOutlineTest);
 }
 
 @reflectiveTest