Sort the files in analysis_server

pkg/analysis_server/benchmark/perf/completion_timing_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.analysis.timing;
 
 import 'dart:async';
 import 'dart:io';
 
 import 'package:args/args.dart';
@@ skipping 15 matching lines @@
     print('path to source directory must be specified');
     exit(1);
   }
   source = args[SOURCE_OPTION];
   priorityFile = args[PRIORITY_FILE_OPTION];
   offset = int.parse(args[COMPLETION_OFFSET]);
 
   Future.wait([new CompletionTimingTest().test_timing()]);
 }
 
+const COMPLETION_OFFSET = 'offset';
 const PRIORITY_FILE_OPTION = 'priority';
 const SOURCE_OPTION = 'source';
-const COMPLETION_OFFSET = 'offset';
 
+int offset;
 String priorityFile;
 String source;
-int offset;
 
 ArgParser _createArgParser() => new ArgParser()
   ..addOption(SOURCE_OPTION, help: 'full path to source directory for analysis')
   ..addOption(PRIORITY_FILE_OPTION, help: 'full path to a priority file')
   ..addOption(COMPLETION_OFFSET, help: 'offset in file for code completions');
 
 /**
  * CompletionTimingTest measures the time taken for the analysis server to respond with
  * completion suggestions for a given file and offset. The time measured starts when
  * the analysis root is set and is done when the completion suggestions are received
@@ skipping 22 matching lines @@
     sendAnalysisSetPriorityFiles([priorityFile]);
     sendCompletionGetSuggestions(priorityFile, offset);
 
     await analysisFinished;
 
     print('analysis completed in ${stopwatch.elapsed}');
     print('completion received at : $timings');
     await shutdown();
   }
 }