[project @ 2001-11-21 10:09:15 by simonmar]

[project @ 2001-11-21 10:09:15 by simonmar]
Turn the weighted reference count in a StablePtr into a simple counter
in the stable ptr table.  We never made use of the weighted count, and
it caused problems when making many StablePtrs to the same object.

In the future we could remove the reference counting altogether and
just make a new StablePtr each time, rather than attempting to use an
existing one.  This would save on the hash table lookup at creation
time.