Suppress a few analysis warnings in the analyzer codebase.

pkg/analysis_server/test/stress/utilities/server.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.
 
 /**
  * Support for interacting with an analysis server that is running in a separate
  * process.
  */
 import 'dart:async';
 import 'dart:collection';
@@ skipping 172 matching lines @@
    * sent to the server.
    */
   int _nextId = 0;
 
   /**
    * The analysis roots that are included.
    */
   List<String> _analysisRootIncludes = <String>[];
 
   /**
-   * The analysis roots that are excluded.
-   */
-  List<String> _analysisRootExcludes = <String>[];
-
-  /**
    * A list containing the paths of files for which an overlay has been created.
    */
   List<String> filesWithOverlays = <String>[];
 
   /**
    * The files that the server reported as being analyzed.
    */
   List<String> _analyzedFiles = <String>[];
 
   /**
@@ skipping 230 matching lines @@
     var params = new AnalysisGetReachableSourcesParams(file).toJson();
     return _send("analysis.getReachableSources", params);
   }
 
   void sendAnalysisReanalyze({List<String> roots}) {
     var params = new AnalysisReanalyzeParams(roots: roots).toJson();
     _send("analysis.reanalyze", params);
   }
 
   void sendAnalysisSetAnalysisRoots(
       List<String> included, List<String> excluded,

[Brian Wilkerson, 2017/02/11 22:27:36]

Sigh. I was planning on using the excludes information too, as soon as I could
get back to finishing the stress test. But if you're going to remove the field,
then you might as well remove the parameter too.

       {Map<String, String> packageRoots}) {
     _analysisRootIncludes = included;
-    _analysisRootExcludes = excluded;
     var params = new AnalysisSetAnalysisRootsParams(included, excluded,
             packageRoots: packageRoots)
         .toJson();
     _send("analysis.setAnalysisRoots", params);
   }
 
   void sendAnalysisSetGeneralSubscriptions(
       List<GeneralAnalysisService> subscriptions) {
     var params =
         new AnalysisSetGeneralSubscriptionsParams(subscriptions).toJson();
@@ skipping 628 matching lines @@
     if (buffer.length > 0) {
       buffer.writeln();
       buffer.writeln();
     }
     buffer.writeln(filePath);
     _writeErrors('  Expected ', expectedErrors);
     buffer.writeln();
     _writeErrors('  Found ', actualErrors);
   }
 }