This fixes the handling of primitives and the order of how side effects
are visible in some array functions as specified by the ES5.

R=rossberg@chromium.org
TEST=test262

Review URL: http://codereview.chromium.org/8197002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9549 ce2b1a6d-e550-0410-aec6-3dcde31c8c00