bug#57848: 29.0.50; Problems with private tab-line-tab-name-function

[Juri Linkov]

>> The hardest problem is to find free keys where these commands could be
>> bound.
>> Maybe 'C-c TAB' and 'C-c S-TAB' like used for the tab-bar.
>
> Sounds reasonable.

For Emacs 30 I'd like to provide two variants: one that you want
where tabs are separate from the buffer order, and another where
the tab list function will reorder buffers in window-prev-buffers.