Revert change 3849.  On ia32, LoadFromSlot again returns its result on the top of the expression stack, not as a Result return value.
Review URL: http://codereview.chromium.org/2121014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4700 ce2b1a6d-e550-0410-aec6-3dcde31c8c00