Rename "pathos" package to "path".

pkg/path/test/windows_test.dart

Index: pkg/path/test/windows_test.dart
diff --git a/pkg/pathos/test/pathos_windows_test.dart b/pkg/path/test/windows_test.dart
similarity index 99%
rename from pkg/pathos/test/pathos_windows_test.dart
rename to pkg/path/test/windows_test.dart
index a7c81827ce20fc9306785c85e0a1cb60a145eb01..7b3cf6004783fbb5c386e960084b831ab9613160 100644
--- a/pkg/pathos/test/pathos_windows_test.dart
+++ b/pkg/path/test/windows_test.dart
@@ -2,10 +2,10 @@
 // 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 pathos_windows_test;
+library path.test.windows_test;
 
 import 'package:unittest/unittest.dart';
-import 'package:pathos/path.dart' as path;
+import 'package:path/path.dart' as path;
 
 main() {
   var builder = new path.Builder(style: path.Style.windows,