GC-less Hash-Tables (AA)

["Nordlöw" via Digitalmars-d-learn]

On Wednesday, 17 September 2014 at 23:27:10 UTC, Nordlöw wrote:
> to check if we need to use GC. If not we can use malloc/free.

Further if they key and values are all fixed-size we should 
probably use some allocator instead of malloc/free. That would 
make more efficient use of this allocation regularity, right?

Is the current AA-allocator easily accessible/modifable somewhere 
in druntime?