Fix map space explosion from changing the arguments and caller properties on native...

Fix map space explosion from changing the arguments and caller properties on native functions.

Adding these local properties on all native functions made us do a
ConvertDescriptorToField on the callback on each and every native
functions, resulting in us creating an extra map for each of these.
Review URL: http://codereview.chromium.org/7779046

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9152 ce2b1a6d-e550-0410-aec6-3dcde31c8c00