TempAlloc: an unusual request

[bearophile]

Andrei:

> dsimcha:
> > My other concern is that giving RegionAllocator reference semantics
> > would, IIUC, require an allocation to allocate a RegionAllocator. Since
> > TempAlloc is designed to avoid global GC locks/world stopping like the
> > plauge, this is obviously bad.
> 
> I was actually glad of that particular outcome...

I suggest to think about it three times before giving FrameAlloc reference semantics. I'd even like a variant of Appender without reference semantics.

Bye,
bearophile