Add more matchers for use in analysis server integration testing.

pkg/analysis_server/test/integration/server_domain_int_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.integration.server.domain;
 
 import 'dart:async';
 
 import 'package:analysis_server/src/constants.dart';
 import 'package:analysis_testing/reflective_tests.dart';
 import 'package:unittest/unittest.dart';
 
 import 'integration_tests.dart';
+import 'protocol_matchers.dart';
 
 @ReflectiveTestCase()
 class ServerDomainIntegrationTest extends AbstractAnalysisServerIntegrationTest
     {
   test_getVersion() {
     return server.send(SERVER_GET_VERSION, null).then((response) {
       expect(response, isServerGetVersionResult);
     });
   }
 
@@ skipping 97 matching lines @@
     return analysisBegun.future.then((_) {
       expect(analysisFinished.isCompleted, isFalse);
       return analysisFinished.future;
     });
   }
 }
 
 main() {
   runReflectiveTests(ServerDomainIntegrationTest);
 }