Pull in test_reflective_loader 0.0.4 and switch analyzer to it.

pkg/analyzer/test/generated/scanner_test.dart

Index: pkg/analyzer/test/generated/scanner_test.dart
diff --git a/pkg/analyzer/test/generated/scanner_test.dart b/pkg/analyzer/test/generated/scanner_test.dart
index cb75945dca68c22329aaea1e613bd20315dac8b4..b1c0547d554a6767665184990ba228adbff2ee89 100644
--- a/pkg/analyzer/test/generated/scanner_test.dart
+++ b/pkg/analyzer/test/generated/scanner_test.dart
@@ -10,18 +10,18 @@ import 'package:analyzer/src/dart/scanner/reader.dart';
 import 'package:analyzer/src/dart/scanner/scanner.dart';
 import 'package:analyzer/src/generated/error.dart';
 import 'package:analyzer/src/generated/source.dart';
+import 'package:test_reflective_loader/test_reflective_loader.dart';
 import 'package:unittest/unittest.dart';
 
-import '../reflective_tests.dart';
 import '../utils.dart';
 import 'test_support.dart';
 
 main() {
   initializeTestEnvironment();
-  runReflectiveTests(CharSequenceReaderTest);
-  runReflectiveTests(KeywordStateTest);
-  runReflectiveTests(ScannerTest);
-  runReflectiveTests(TokenTypeTest);
+  defineReflectiveTests(CharSequenceReaderTest);
+  defineReflectiveTests(KeywordStateTest);
+  defineReflectiveTests(ScannerTest);
+  defineReflectiveTests(TokenTypeTest);
 }
 
 class CharacterRangeReaderTest extends EngineTestCase {