Proposed change to ForeignPtr

[George Russell]

Malcolm Wallace wrote (about delayed finalizers):
> This was the originally proposed solution for re-entrant finalisers
> in nhc98 and Hugs.  The problem is that, certainly for nhc98, it is
> nigh impossible for the RTS to identify a "convenient" later moment
> at which to run the delayed finaliser.
Well, if the nhc98 RTS can't work out a time when it will be possible to
run the delayed finalizer, how in creation do you expect the Foogle finalizer
or whatever Foogle GC process it invokes to do so?