Make PathFilter use the resource providers path context

pkg/analysis_server/lib/src/context_manager.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 context.directory.manager;
 
 import 'dart:async';
 import 'dart:collection';
 import 'dart:convert';
 import 'dart:core' hide Resource;
@@ skipping 70 matching lines @@
    * The analysis context that was created for the [folder].
    */
   AnalysisContext context;
 
   /**
    * Map from full path to the [Source] object, for each source that has been
    * added to the context.
    */
   Map<String, Source> sources = new HashMap<String, Source>();
 
-  ContextInfo(this.contextManager, this.parent, Folder folder,
+  ContextInfo(ContextManagerImpl contextManager, this.parent, Folder folder,
       File packagespecFile, this.packageRoot)
-      : folder = folder,
-        pathFilter = new PathFilter(folder.path, null) {
+      : contextManager = contextManager,
+        folder = folder,
+        pathFilter = new PathFilter(
+            contextManager.resourceProvider.pathContext, folder.path, null) {
     packageDescriptionPath = packagespecFile.path;
     parent.children.add(this);
   }
 
   /**
    * Create the virtual [ContextInfo] which acts as an ancestor to all other
    * [ContextInfo]s.
    */
   ContextInfo._root()
       : contextManager = null,
@@ skipping 1227 matching lines @@
 
   PackagesFileDisposition(this.packages) {}
 
   @override
   String get packageRoot => null;
 
   @override
   Iterable<UriResolver> createPackageUriResolvers(
       ResourceProvider resourceProvider) => const <UriResolver>[];
 }