[jhc] darcs patch: make Info type ids not depend on the exa... (and 2 more)

Tue Mar 6 17:46:13 PST 2012 John Meacham * make Info type ids not depend on the exact format of TypeRep, reduce size of type ids from 32 to 8 bits. Tue Mar 6 18:05:52 PST 2012 John Meacham * remove some files from drift_processed that no longer have DrIFT annotations Tue Mar 6 19:55:23 PST 2012 John Meacham * start using Jhc.ForeignPtr