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

pkg/analyzer/test/src/dart/ast/test_all.dart

Index: pkg/analyzer/test/src/dart/ast/test_all.dart
diff --git a/pkg/analyzer/test/src/dart/ast/test_all.dart b/pkg/analyzer/test/src/dart/ast/test_all.dart
index f0648c442345fdb07da8a7d49256c6f89f718881..e7e3761ab2c2468d7436c24f89973be4b73b1a69 100644
--- a/pkg/analyzer/test/src/dart/ast/test_all.dart
+++ b/pkg/analyzer/test/src/dart/ast/test_all.dart
@@ -4,7 +4,7 @@
 
 library analyzer.test.src.dart.ast.test_all;
 
-import 'package:unittest/unittest.dart';
+import 'package:test_reflective_loader/test_reflective_loader.dart';
 
 import '../../../utils.dart';
 import 'utilities_test.dart' as utilities;
@@ -12,7 +12,7 @@ import 'utilities_test.dart' as utilities;
 /// Utility for manually running all tests.
 main() {
   initializeTestEnvironment();
-  group('ast tests', () {
+  defineReflectiveSuite(() {
     utilities.main();
-  });
+  }, name: 'ast');
 }