[project @ 2005-02-02 14:54:18 by ross]

an instance for FunPtr, and minor Hugs fixes:

* for Hugs only, move the instances for ST, STRef and STArray back.
  Having them in Data.Typeable, which is imported by Data.Dynamic,
  would mean that every invocation of runhugs or ffihugs would need
  the -98 option.

* Hugs also has MVar and the exception types.

and NHC has ForeignPtr too.