[project @ 2000-03-13 10:53:55 by simonmar]

Move Prelude.h from ghc/includes into ghc/rts.  It's essentially a
list of the things from the Prelude that the RTS depends on, and isn't
relevant to STG code.  Furthermore, this helps to clarify which parts
of the RTS depend on things from the Prelude (by an explicity
#include).