Breaking changes in 'analyzer' package.

pkg/analyzer/lib/file_system/physical_file_system.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 physical_file_system;
 
 import 'dart:async';
 import 'dart:io' as io;
 
 import 'package:analyzer/src/generated/java_io.dart';
@@ skipping 29 matching lines @@
 }
 
 
 /**
  * A `dart:io` based implementation of [File].
  */
 class _PhysicalFile extends _PhysicalResource implements File {
   _PhysicalFile(io.File file) : super(file);
 
   @override
-  Source createSource(UriKind uriKind) {
+  Source createSource([Uri uri]) {
     io.File file = _entry as io.File;
     JavaFile javaFile = new JavaFile(file.absolute.path);
-    return new FileBasedSource.con2(javaFile, uriKind);
+    if (uri == null) {
+      uri = javaFile.toURI();
+    }
+    return new FileBasedSource.con2(uri, javaFile);
   }
 }
 
 
 /**
  * A `dart:io` based implementation of [Folder].
  */
 class _PhysicalFolder extends _PhysicalResource implements Folder {
   _PhysicalFolder(io.Directory directory) : super(directory);
 
@@ skipping 63 matching lines @@
   bool operator ==(other) {
     if (runtimeType != other.runtimeType) {
       return false;
     }
     return path == other.path;
   }
 
   @override
   String toString() => path;
 }