Merged r20315 into 3.25 branch.

Add Bogus initialization for external_elements_kind and fixed_elements_kind

R=danno@chromium.org
BUG=

Review URL: https://codereview.chromium.org/230023002

git-svn-id: https://v8.googlecode.com/svn/branches/3.25@20597 ce2b1a6d-e550-0410-aec6-3dcde31c8c00