Original patch by Mark Lam <mark.lam@palm.com> from Hewlett-Packard Development Company, LP. (http://codereview.chromium.org/4187007)

Fix memory corruption in JSFunctionResultCache::Clear caused by out of bounds writes which was revealed by the patch.

Review URL: http://codereview.chromium.org/4200009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5738 ce2b1a6d-e550-0410-aec6-3dcde31c8c00