Switch analysis_server to use 'package:test'.

pkg/analysis_server/test/services/correction/status_test.dart

Index: pkg/analysis_server/test/services/correction/status_test.dart
diff --git a/pkg/analysis_server/test/services/correction/status_test.dart b/pkg/analysis_server/test/services/correction/status_test.dart
index 0de15175d89361125ef6c47fda6bc718ad43e7c8..903cf67b44d983b26835a435d544c177dad7b560 100644
--- a/pkg/analysis_server/test/services/correction/status_test.dart
+++ b/pkg/analysis_server/test/services/correction/status_test.dart
@@ -11,16 +11,18 @@ import 'package:analysis_server/src/services/search/search_engine.dart';
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/src/generated/source.dart';
+import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
-import 'package:unittest/unittest.dart';
 
 import '../../abstract_single_unit.dart';
 import '../../utils.dart';
 
 main() {
   initializeTestEnvironment();
-  defineReflectiveTests(RefactoringLocationTest);
-  defineReflectiveTests(RefactoringStatusTest);
+  defineReflectiveSuite(() {
+    defineReflectiveTests(RefactoringLocationTest);
+    defineReflectiveTests(RefactoringStatusTest);
+  });
 }
 
 @reflectiveTest