Pull in test_reflective_loader 0.0.4 and switch analyzer to it.

pkg/analyzer/test/generated/constant_test.dart

Index: pkg/analyzer/test/generated/constant_test.dart
diff --git a/pkg/analyzer/test/generated/constant_test.dart b/pkg/analyzer/test/generated/constant_test.dart
index 989393374251f580090ce5f831e370fb6711b247..a13675347b5f280872ccda5dfbb94ce84c900a7e 100644
--- a/pkg/analyzer/test/generated/constant_test.dart
+++ b/pkg/analyzer/test/generated/constant_test.dart
@@ -11,16 +11,16 @@ import 'package:analyzer/dart/element/type.dart';
 import 'package:analyzer/src/generated/constant.dart';
 import 'package:analyzer/src/generated/source.dart';
 import 'package:analyzer/src/generated/source_io.dart';
+import 'package:test_reflective_loader/test_reflective_loader.dart';
 import 'package:unittest/unittest.dart';
 
-import '../reflective_tests.dart';
 import '../utils.dart';
 import 'resolver_test_case.dart';
 import 'test_support.dart';
 
 main() {
   initializeTestEnvironment();
-  runReflectiveTests(ConstantEvaluatorTest);
+  defineReflectiveTests(ConstantEvaluatorTest);
 }
 
 @reflectiveTest