Small fix to buildbot_annotated_steps.py to find correctly the latest version of

client/tools/buildbot_annotated_steps.py

 # Copyright (c) 2011, 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.
 
 #!/usr/bin/python
 
 # Copyright (c) 2011 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Dart client buildbot steps
 
 Compiles dart client apps with dartc, and run the client tests both in headless
 chromium and headless dartium.
 """
 
 import os
 import re
 import socket
 import subprocess
 import sys
 import shutil
 import glob
 
 BUILDER_NAME = 'BUILDBOT_BUILDERNAME'
 REVISION = 'BUILDBOT_REVISION'
 
 # latest dartium location
-DARTIUM_VERSION_FILE = 'tests/drt/LAST_VERSION'
+DARTIUM_VERSION_FILE = 'client/tests/drt/LAST_VERSION'
 DARTIUM_V_MATCHER = (
     'gs://dartium-archive/[^/]*/dartium-\w*-inc-([0-9]*).([0-9]*).zip')
 
 # Patterns are of the form "dart_client-linux-ia32-debug"
 BUILDER_PATTERN = r'dart_client-(\w+)-(\w+)-(\w+)'
 
 
 def GetBuildInfo():
   """Returns a tuple (name, version, arch, mode, platform) where:
     - name: A name for the build - the buildbot host if a buildbot.
@@ skipping 86 matching lines @@
     print ('@@@BUILD_STEP dartc dart clients: %s@@@' % name)
 
     utils = GetUtils()
     outdir = GetOutDir(utils, mode)
     status = RunDartcCompiler(mode, outdir)
     if status != 0:
       return status
 
   if component == 'dartium':
     if os.path.exists(DARTIUM_VERSION_FILE):
-      latest = open(version_file, 'r').read()
+      latest = open(DARTIUM_VERSION_FILE, 'r').read()
       match = re.match(DARTIUM_V_MATCHER, latest)
       if match:
         print '@@@BUILD_STEP vm r%s (dartium r%s)@@@' % (
             match.group(2), match.group(1))
   print '@@@BUILD_STEP browser unit tests@@@'
   return RunBrowserTests(component, mode, platform)
 
 def ProcessTools(mode, name, version):
   '''
   build and test the tools
@@ skipping 49 matching lines @@
     status = ProcessDartClientTests(component, mode, platform, name)
 
   if status:
     print '@@@STEP_FAILURE@@@'
 
   return status
 
 
 if __name__ == '__main__':
   sys.exit(main())