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

pkg/analyzer/test/file_system/resource_uri_resolver_test.dart

 // Copyright (c) 2014, 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.file_system.resource_uri_resolver_test;
 
 import 'package:analyzer/file_system/file_system.dart';
 import 'package:analyzer/file_system/memory_file_system.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 '../utils.dart';
 
 main() {
-  initializeTestEnvironment();
-  defineReflectiveTests(ResourceUriResolverTest);
+  defineReflectiveSuite(() {
+    defineReflectiveTests(ResourceUriResolverTest);
+  });
 }
 
 @reflectiveTest
 class ResourceUriResolverTest {
   MemoryResourceProvider provider;
   ResourceUriResolver resolver;
 
   void setUp() {
     provider = new MemoryResourceProvider();
     resolver = new ResourceUriResolver(provider);
@@ skipping 36 matching lines @@
     var uri = provider.pathContext.toUri(provider.convertPath('/test.dart'));
     Source source = resolver.resolveAbsolute(uri);
     expect(source, isNotNull);
     expect(resolver.restoreAbsolute(source), uri);
     expect(
         resolver.restoreAbsolute(
             new NonExistingSource(source.fullName, null, null)),
         uri);
   }
 }