Sort the files in analysis_server

pkg/analysis_server/benchmark/perf/performance_tests.dart

 // Copyright (c) 2015, 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 server.performance;
 
 import 'dart:async';
 import 'dart:io';
 
 import 'package:analysis_server/plugin/protocol/protocol.dart';
@@ skipping 38 matching lines @@
     return startServer().then((_) {
       server.listenToOutput(dispatchNotification);
       server.exitCode.then((_) {
         skipShutdown = true;
       });
       return serverConnected.future;
     });
   }
 
   /**
+   * After every test, the server is stopped.
+   */
+  Future shutdown() async => await shutdownIfNeeded();
+
+  /**
    * Enable [SERVER_STATUS] notifications so that [analysisFinished]
    * can be used.
    */
   Future subscribeToStatusNotifications() {
     List<Future> futures = <Future>[];
     futures.add(sendServerSetSubscriptions([ServerService.STATUS]));
     return Future.wait(futures);
   }
-
-  /**
-   * After every test, the server is stopped.
-   */
-  Future shutdown() async => await shutdownIfNeeded();
 }
 
 class AbstractTimingTest extends AbstractAnalysisServerPerformanceTest {
   Future init(String source) async {
     await super.setUp();
     sourceDirectory = new Directory(source);
     return subscribeToStatusNotifications();
   }
 }