win ninja: Speculative fix for pdb locking errors

test/win/gyptest-cl-pdbname.py

 #!/usr/bin/env python
 
 # Copyright (c) 2013 Google Inc. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """
 Make sure pdb is named as expected (shared between .cc files).
 """
 
 import TestGyp
 
 import sys
 
 if sys.platform == 'win32':
   test = TestGyp.TestGyp(formats=['ninja'])
 
   CHDIR = 'compiler-flags'
   test.run_gyp('pdbname.gyp', chdir=CHDIR)
   test.build('pdbname.gyp', test.ALL, chdir=CHDIR)
 
   # Confirm that the default behaviour is to name the .pdb per-target (rather
   # than per .cc file).
-  test.built_file_must_exist('obj/test_pdbname.pdb', chdir=CHDIR)
+  test.built_file_must_exist('obj/test_pdbname.cc.pdb', chdir=CHDIR)
 
   # Confirm that there should be a .pdb alongside the executable.
   test.built_file_must_exist('test_pdbname.exe', chdir=CHDIR)
   test.built_file_must_exist('test_pdbname.exe.pdb', chdir=CHDIR)
 
   test.pass_test()