[gclist] Finalization and death notices

[Pekka P. Pirinen]

> A near death notice informs a registered custodian that they are the
> only one with a remaining interest in an object and they now hold
> the last remaining thread keeping it alive. You can't have two of
> those.

You're trying to redefine the term to mean something different from
what people used it for.  Sure it sounds like a good story, but I'm
not even sure it's something anyone would want.  Whereas MPS
finalization, guardians, ephemerons, etc. work fine even though you
can register multiple custodians.  If we couldn't call these
near-death notices, we'd need yet another term.
-- 
Pekka P. Pirinen
    I have yet to see any problem, however complicated, which,
when you looked at it in the right way, did not become still
more complicated.	- Poul Anderson