Support grow-stub by >1 if the target is holey.

R=danno@chromium.org

Review URL: https://chromiumcodereview.appspot.com/18484006

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@15633 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Bogus assert needs to be removed on non-ia32 platforms

BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/18384007

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@15634 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Turn ElementsTransitionAndStore stub into a HydrogenCodeStub.

R=danno@chromium.org, mvstanton@chromium.org

Review URL: https://codereview.chromium.org/18881004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@15635 ce2b1a6d-e550-0410-aec6-3dcde31c8c00