Suppress a few analysis warnings in the analyzer codebase.

pkg/analysis_server/test/stress/utilities/server.dart

Index: pkg/analysis_server/test/stress/utilities/server.dart
diff --git a/pkg/analysis_server/test/stress/utilities/server.dart b/pkg/analysis_server/test/stress/utilities/server.dart
index 88a44ce9a08e44dc3ea026ea51a31eccd91d39f0..eebcf9f878fe22a915690b7f2ce8e3d1e1ebafa9 100644
--- a/pkg/analysis_server/test/stress/utilities/server.dart
+++ b/pkg/analysis_server/test/stress/utilities/server.dart
@@ -190,11 +190,6 @@ class Server {
   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>[];
@@ -448,7 +443,7 @@ class Server {
       List<String> included, List<String> excluded,
       {Map<String, String> packageRoots}) {
     _analysisRootIncludes = included;
-    _analysisRootExcludes = excluded;
+    //_analysisRootExcludes = excluded;

[scheglov, 2017/02/10 21:06:53]

Remove it.

[devoncarew, 2017/02/10 21:12:35]

Done.

     var params = new AnalysisSetAnalysisRootsParams(included, excluded,
             packageRoots: packageRoots)
         .toJson();