Pull in test_reflective_loader 0.0.4 and switch analyzer to it.

pkg/analyzer/test/src/summary/linker_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.
 
 import 'package:analyzer/dart/element/type.dart';
 import 'package:analyzer/src/dart/element/element.dart';
 import 'package:analyzer/src/summary/format.dart';
 import 'package:analyzer/src/summary/idl.dart';
 import 'package:analyzer/src/summary/link.dart';
+import 'package:test_reflective_loader/test_reflective_loader.dart';
 import 'package:unittest/unittest.dart';
 
-import '../../reflective_tests.dart';
 import 'summarize_ast_test.dart';
 
 main() {
   groupSep = ' | ';
-  runReflectiveTests(LinkerUnitTest);
+  defineReflectiveTests(LinkerUnitTest);
 }
 
 @reflectiveTest
 class LinkerUnitTest extends SummaryLinkerTest {
   Linker linker;
 
   LinkerInputs linkerInputs;
   LibraryElementInBuildUnit _testLibrary;
   @override
   bool get allowMissingFiles => false;
@@ skipping 880 matching lines @@
     PropertyAccessorElementForLink_Variable j = library.getContainedName('j');
     expect(j.variable.initializer, isNull);
     PropertyAccessorElementForLink_Variable v = library.getContainedName('v');
     expect(v.variable.initializer, isNotNull);
   }
 
   VariableElementForLink _getVariable(ReferenceableElementForLink element) {
     return (element as PropertyAccessorElementForLink_Variable).variable;
   }
 }