Fix r17253.

There's no reason why the setObjectGroupIde / setReferenceFromGroups funcs should've been called twice.

BUG=
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/39573002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17358 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
MIPS: Increase code space first page size due to r17334.

BUG=
R=danno@chromium.org

Review URL: https://codereview.chromium.org/39363004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17359 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Revert "Make Array.prototype.pop throw if the last element is not configurable."

This reverts commit r17346.

R=bmeurer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/39593002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17360 ce2b1a6d-e550-0410-aec6-3dcde31c8c00