bug#32850: 27.0.50; window-swap-states doesn't swap window prev/next-buffers

[martin rudalics]

>> Then we at least facultatively should show that prefix number in the
>> tab.
>
> Web browsers allow switching tabs by absolute numbers, e.g. C-2 or M-2,
> but they don't show these numbers in tabs.

It would have been a pain to supply such numbers in the first place -
they would have had to be updated whenever another window or buffer
gets selected or is made current.  So forget this idea.

martin