Pythonification and refactoring of push-to-trunk.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/81193002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17995 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Sync svn:ignore with .gitignore on trunk/test/* and bleeding_edge/test/*

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17996 ce2b1a6d-e550-0410-aec6-3dcde31c8c00