[project @ 2000-05-22 13:09:29 by simonmar]

Batch finalizers on a per-GC basis.  That is, after a GC a single
thread is created to run the pending finalizers, rather than creating
a thread for each finalizer.

This is almost as fast as having a global thread to run finalizers,
but doesn't require any global state or special treatment by the
scheduler.