Revert "Defer allocation of native function literals."

This reverts r17017 for breaking LayoutTests.

R=mstarzinger@chromium.org
TBR=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/25315002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17024 ce2b1a6d-e550-0410-aec6-3dcde31c8c00