Pull in test_reflective_loader 0.0.4 and switch analyzer to it.

pkg/analysis_server/test/domain_execution_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 test.domain.execution;
 
 import 'dart:async';
 
 import 'package:analysis_server/plugin/protocol/protocol.dart';
 import 'package:analysis_server/src/analysis_server.dart';
@@ skipping 270 matching lines @@
   @override
   void setUp() {
     super.setUp();
     createProject();
     handler = new ExecutionDomainHandler(server);
     _createExecutionContext(testFile);
   }
 
   @override
   void tearDown() {
+    _disposeExecutionContext();
     super.tearDown();
-    _disposeExecutionContext();
   }
 
   void test_mapUri_file() {
     String path = '/a/b.dart';
     resourceProvider.newFile(path, '');
     // map the file
     ExecutionMapUriResult result = _mapUri(file: path);
     expect(result.file, isNull);
     expect(result.uri, 'file:///a/b.dart');
   }
@@ skipping 46 matching lines @@
  * A [Source] that knows it's [fullName].
  */
 class TestSource implements Source {
   String fullName;
 
   TestSource(this.fullName);
 
   @override
   noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
 }