bug#34516: Multi-monitor frame sets

[Juri Linkov]

>     Robert> It works fine for me. Of course, now that Iʼm using it,
>     Robert> Iʼd like a 'make-frame-on-current-monitor' :-) I guess I
>     Robert> can iterate over the frames elements of
>     Robert> 'display-monitor-attributes-list', unless thereʼs a 'what
>     Robert> monitor is this frame on' primitive.
>
> D'oh. 'frame-monitor-attributes'.

Thanks for the hint.  Now I added the default value to
make-frame-on-monitor, so for the current monitor you can just do:
M-x make-frame-on-monitor RET RET