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

pkg/analyzer/test/generated/hint_code_test.dart

 // Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library analyzer.test.generated.hint_code_test;
 
 import 'package:analyzer/error/error.dart';
 import 'package:analyzer/src/error/codes.dart';
 import 'package:analyzer/src/generated/engine.dart';
 import 'package:analyzer/src/generated/parser.dart';
 import 'package:analyzer/src/generated/source_io.dart';
+import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
-import 'package:unittest/unittest.dart';
 
 import '../utils.dart';
 import 'analysis_context_factory.dart';
 import 'resolver_test_case.dart';
 
 main() {
   initializeTestEnvironment();
-  defineReflectiveTests(HintCodeTest);
+  defineReflectiveSuite(() {
+    defineReflectiveTests(HintCodeTest);
+  });
 }
 
 @reflectiveTest
 class HintCodeTest extends ResolverTestCase {
   @override
   void reset() {
     analysisContext2 = AnalysisContextFactory.contextWithCoreAndPackages({
       'package:meta/meta.dart': r'''
 library meta;
 
@@ skipping 3980 matching lines @@
   n() {
     var a = m(), b = m();
   }
 }''');
     computeLibrarySourceErrors(source);
     assertErrors(
         source, [HintCode.USE_OF_VOID_RESULT, HintCode.USE_OF_VOID_RESULT]);
     verify([source]);
   }
 }