Switch 'analyzer' to 'package:test' and test_reflective_loader ^0.1.0.

pkg/analyzer/test/dart/test_all.dart

Index: pkg/analyzer/test/dart/test_all.dart
diff --git a/pkg/analyzer/test/dart/test_all.dart b/pkg/analyzer/test/dart/test_all.dart
index df7ff550d71d877ed0326fc30ca2df1e8f77cbf1..2be35323cfc6785603042cf82b26f41521332830 100644
--- a/pkg/analyzer/test/dart/test_all.dart
+++ b/pkg/analyzer/test/dart/test_all.dart
@@ -4,7 +4,7 @@
 
 library analyzer.test.generated.test_all;
 
-import 'package:unittest/unittest.dart';
+import 'package:test_reflective_loader/test_reflective_loader.dart';
 
 import '../utils.dart';
 import 'ast/test_all.dart' as ast;
@@ -13,8 +13,8 @@ import 'element/test_all.dart' as element;
 /// Utility for manually running all tests.
 main() {
   initializeTestEnvironment();
-  group('dart tests', () {
+  defineReflectiveSuite(() {
     ast.main();
     element.main();
-  });
+  }, name: 'dart');
 }