Start running the analysis server integration tests by changing the name to end with _test.dart

pkg/analysis_server/test/integration/analysis_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.analysis.domain;
 
 import 'dart:async';
 
 import 'package:analysis_server/src/constants.dart';
 import 'package:analysis_testing/reflective_tests.dart';
@@ skipping 181 matching lines @@
       return analysisFinished.then((_) => finishTest());
     } else {
       return finishTest();
     }
   }
 }
 
 main() {
   runReflectiveTests(AnalysisDomainIntegrationTest);
 }