[project @ 2002-09-04 16:05:29 by simonmar]

[project @ 2002-09-04 16:05:29 by simonmar]
GHC can derive arbitrary instances for newtypes, so derive Storable
for the types in Foreign.C.Types, rather than using CPP trickery to
define the instances.

This moves the Storable instances for the C Types from
Foreign.Storable into Foreign.C.Types, and hence a few imports have
changed around.