Additional flakiness reducing changes. Also rerun DRT on false positive tests.

frog/scripts/buildbot_annotated_steps.py

 #!/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 frog buildbot steps
 
 Runs tests for the frog compiler (running on the vm or the self-hosting version)
 """
@@ skipping 148 matching lines @@
   if len(sys.argv) == 0:
     print 'Script pathname not known, giving up.'
     return 1
 
   arch, mode, system, browser = GetBuildInfo()
   print "arch: %s, mode: %s, system: %s, browser %s" % (arch, mode, system,
       browser)
   if arch is None:
     return 1
 
-  status = BuildFrog(arch, mode, system)
+  status = 0
+  if arch == 'frogium':
+    # Use release VM on frogium bots, so our tests run faster.
+    status = BuildFrog(arch, 'release', system)

[Emily Fortuna, 2012/02/09 23:29:06]

we use "debug" mode on other things so that the timeout is larger for browser
tests.

+  else:
+    status = BuildFrog(arch, mode, system)
   if status != 0:
     print '@@@STEP_FAILURE@@@'
     return status
 
   if arch != 'frogium':
     status = TestFrog(arch, mode, system, browser, [])
     if status != 0:
       print '@@@STEP_FAILURE@@@'
       return status
 
   status = TestFrog(arch, mode, system, browser, ['--checked'])
   if status != 0:
     print '@@@STEP_FAILURE@@@'
 
   return status
 
 
 if __name__ == '__main__':
   sys.exit(main())