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

pkg/analyzer/test/src/context/builder_test.dart

Index: pkg/analyzer/test/src/context/builder_test.dart
diff --git a/pkg/analyzer/test/src/context/builder_test.dart b/pkg/analyzer/test/src/context/builder_test.dart
index de4ac1d57934b1e4d598e7901321e1e05e74d677..f9b703cc9a1be715c299c5780167b60a257f6553 100644
--- a/pkg/analyzer/test/src/context/builder_test.dart
+++ b/pkg/analyzer/test/src/context/builder_test.dart
@@ -18,8 +18,8 @@ import 'package:package_config/packages.dart';
 import 'package:package_config/src/packages_impl.dart';
 import 'package:path/path.dart' as path;
 import 'package:plugin/src/plugin_impl.dart';
+import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
-import 'package:unittest/unittest.dart';
 
 import '../../embedder_tests.dart';
 import '../../generated/test_support.dart';
@@ -28,8 +28,10 @@ import 'mock_sdk.dart';
 
 main() {
   initializeTestEnvironment();
-  defineReflectiveTests(ContextBuilderTest);
-  defineReflectiveTests(EmbedderYamlLocatorTest);
+  defineReflectiveSuite(() {
+    defineReflectiveTests(ContextBuilderTest);
+    defineReflectiveTests(EmbedderYamlLocatorTest);
+  });
 }
 
 @reflectiveTest