[gclist] Extensions to weak pointers

[Olivier Ridoux]

> I was wondering whether any of these two extensions has ever been
> considered, or even implemented in a GC.  (Some kind of priority was,
> if I remember well, implemented in low-memory handlers in the latest
> [and last] version of AmigaOS).  I would also be glad to collect your
> comments about these suggestions.

I think there was a proposition in the same spirit in IWMM92.  I have not the
proceedings at hands, so I cannot be more precise.

Olivier Ridoux