Use package:test_reflective_loader instead of reflective_tests.

pkg/analysis_server/test/integration/analysis/get_hover_test.dart

Index: pkg/analysis_server/test/integration/analysis/get_hover_test.dart
diff --git a/pkg/analysis_server/test/integration/analysis/get_hover_test.dart b/pkg/analysis_server/test/integration/analysis/get_hover_test.dart
index 7b5be4d6df1ca5b3a866984cc97a7a505a773721..3928d99c97215ca2b4b4aa53085be31a9100c61e 100644
--- a/pkg/analysis_server/test/integration/analysis/get_hover_test.dart
+++ b/pkg/analysis_server/test/integration/analysis/get_hover_test.dart
@@ -8,13 +8,13 @@ import 'dart:async';
 
 import 'package:analysis_server/src/protocol.dart';
 import 'package:path/path.dart';
+import 'package:test_reflective_loader/test_reflective_loader.dart';
 import 'package:unittest/unittest.dart';
 
-import '../../reflective_tests.dart';
 import '../integration_tests.dart';
 
 main() {
-  runReflectiveTests(AnalysisGetHoverIntegrationTest);
+  defineReflectiveTests(AnalysisGetHoverIntegrationTest);
 }
 
 @reflectiveTest