[jhc] darcs patch: various library fixes, added minusPtr, o... (and 2 more)

Fri Feb 27 06:25:45 PST 2009 John Meacham <john@repetae.net> * various library fixes, added minusPtr, openBinaryFile, hGetLine, fixed type for C finalizers Fri Feb 27 06:26:07 PST 2009 John Meacham <john@repetae.net> * allow foreign import specification parameters to appear in arbitrary order Fri Feb 27 06:30:40 PST 2009 John Meacham <john@repetae.net> * clean up old renaming code for HsExp