Pull in test_reflective_loader 0.0.4 and switch analyzer to it.

pkg/analyzer/test/src/summary/index_unit_test.dart

Index: pkg/analyzer/test/src/summary/index_unit_test.dart
diff --git a/pkg/analyzer/test/src/summary/index_unit_test.dart b/pkg/analyzer/test/src/summary/index_unit_test.dart
index f6851c8dff52fb85d60328ee084c779b611a8613..06f6efb11f8b4bd3c997cad65cec8af3caa2d132 100644
--- a/pkg/analyzer/test/src/summary/index_unit_test.dart
+++ b/pkg/analyzer/test/src/summary/index_unit_test.dart
@@ -9,14 +9,14 @@ import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/src/summary/format.dart';
 import 'package:analyzer/src/summary/idl.dart';
 import 'package:analyzer/src/summary/index_unit.dart';
+import 'package:test_reflective_loader/test_reflective_loader.dart';
 import 'package:unittest/unittest.dart';
 
-import '../../reflective_tests.dart';
 import '../abstract_single_unit.dart';
 
 main() {
   groupSep = ' | ';
-  runReflectiveTests(PackageIndexAssemblerTest);
+  defineReflectiveTests(PackageIndexAssemblerTest);
 }
 
 class ExpectedLocation {