We only need the values within them. Function calls to Array from optimized code needed the cell in the past, but no longer.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/141893002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18682 ce2b1a6d-e550-0410-aec6-3dcde31c8c00