Does associative array change the location of values?

[Imperatorn]

On Saturday, 30 October 2021 at 20:05:17 UTC, Stanislav Blinov 
wrote:
> On Saturday, 30 October 2021 at 18:31:16 UTC, Andrey Zherikov 
> wrote:
>
>> I did small test and it printed the same values three times so 
>> even rehash doesn't change the address of the value:
>
>> So it seems pretty safe to store a pointer to a value in AA. 
>> And I agree that this should definitely be documented.
>
> Address itself may change though. While the AA won't move stuff 
> around, a GC might. I don't think current GC moves anything, 
> but it's definitely allowed to. Which would be transparent to 
> your code so long as you don't depend on the value of address 
> itself :)
>
> https://dlang.org/spec/garbage.html#pointers_and_gc

What test could be written to verify the behaviour?