Pull in test_reflective_loader 0.0.4 and switch analyzer to it.

pkg/analyzer/test/src/context/builder_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.src.context.context_builder_test;
 
 import 'package:analyzer/file_system/file_system.dart';
 import 'package:analyzer/file_system/memory_file_system.dart';
 import 'package:analyzer/plugin/options.dart';
 import 'package:analyzer/source/package_map_resolver.dart';
 import 'package:analyzer/src/context/builder.dart';
 import 'package:analyzer/src/context/source.dart';
 import 'package:analyzer/src/generated/engine.dart';
 import 'package:analyzer/src/generated/sdk.dart';
 import 'package:analyzer/src/generated/source.dart';
 import 'package:analyzer/src/plugin/options_plugin.dart';
 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_reflective_loader/test_reflective_loader.dart';
 import 'package:unittest/unittest.dart';
 
 import '../../embedder_tests.dart';
 import '../../generated/test_support.dart';
-import '../../reflective_tests.dart';
 import '../../utils.dart';
 import 'mock_sdk.dart';
 
 main() {
   initializeTestEnvironment();
-  runReflectiveTests(ContextBuilderTest);
-  runReflectiveTests(EmbedderYamlLocatorTest);
+  defineReflectiveTests(ContextBuilderTest);
+  defineReflectiveTests(EmbedderYamlLocatorTest);
 }
 
 @reflectiveTest
 class ContextBuilderTest extends EngineTestCase {
   /**
    * The resource provider to be used by tests.
    */
   MemoryResourceProvider resourceProvider;
 
   /**
@@ skipping 666 matching lines @@
       fail('Unexpected invocation of optionsProcessed');
     }
     expect(options, hasLength(expectedOptions.length));
     for (String key in expectedOptions.keys) {
       expect(options.containsKey(key), isTrue, reason: 'missing key $key');
       expect(options[key], expectedOptions[key],
           reason: 'values for key $key do not match');
     }
   }
 }