Convert argument toObject() in Object.getOwnPropertyNames/Descriptors

BUG=v8:3443
LOG=Y
R=arv@chromium.org, dslomov@chromium.org

Review URL: https://codereview.chromium.org/613283002

Patch from Caitlin Potter <caitpotter88@gmail.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24638 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Break deserializer reservations into chunks that fit onto a page.

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/653033002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24639 ce2b1a6d-e550-0410-aec6-3dcde31c8c00