R=mstarzinger@chromium.org
BUG=v8:1543,v8:1565
TEST=

Review URL: http://codereview.chromium.org/7754015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9396 ce2b1a6d-e550-0410-aec6-3dcde31c8c00