Removed caching of hash values since it did not work and did not improve performance.  Switched TYPE macro to BUILTIN_TYPE macro to save a little in the hook method.
Removed caching of hash values since it did not work and did not improve performance.  Switched TYPE macro to BUILTIN_TYPE macro to save a little in the hook method.

git-svn-id: a649f8b53cef7d15963550bf81aeba716f52dec1@38 5fb4a865-4516-0410-ae3b-a609ddf12040

mag/ruby-prof,mag/ruby-prof