bug#71386: 29.1; Frame is auto-deleted even when it has multiple tabs

[Juri Linkov]

>> I don't know why Martin wants to avoid closing the tabs in window.el
>> when tabs have the same status as frames, and frames are deleted
>> in window.el.
>
> I don't want to avoid closing tabs in window.el.  But please make sure
> that the mechanism works for any window on any frame.  Whatever we
> choose, 'window-deletable-p' and 'window--delete' have to work for an
> arbitrary live window.

So the obstacle is that tab-bar-close-tab closes tabs only on the
selected frame?  I don't know, this never was a problem.