bug#32825: 27.0.50; Deterministic window management

[Juri Linkov]

>> So please think of any bad consequences of what we decide in (1) like
>> not using _any_ window on the selected frame because none of them fits
>> the 'min-height' constraint.  Consider a default two windows frame
>> where the size of the selected window is preserved.
>
> We should be also able to fix Bug#10186 then.
>
> BTW, I recently tried to write a function that can be used to return
> the specifics of the window chosen by 'display-buffer'.  Discussions
> of the use of such a function were frequent in the past (bug numbers
> 6000, 10127, 10600, 12618, 17809) but we never came to a conclusion of
> whether such a thing would be really useful or can be practically
> implemented at all.
>
> Have a look at the patch I attach, it's against the release branch.

If I understand correctly the purpose of your function, maybe a better
name would be display-buffer-try?  Or if it also checks some predefined
values, then maybe display-buffer-assert?