bug#38797: 27.0.50; Feature request: provide the opposite of xref-pop-marker-stack

[Juri Linkov]

>>> That reminds me of a potential feature: saving the history of searches and
>>> going back/forward between them, in the manner of help-go-back and
>>> help-go-forward (maybe even with same keybindings).
>>>
>>>  From that perspective, we could choose the names in advance. Either
>>>
>>>    xref-go-back/forward and xref-history-back/forward
>>>
>>> or, I suppose
>>>
>>>    xref-back-history/forward-history and xref-searches-back/forward
>>>
>>> ...something like that.
>> I never had such a problem thanks to the customization
>> that creates a new buffer for every search:
>>    (add-hook 'xref--xref-buffer-mode-hook 'rename-uniquely)
>
> It's a nice intermediate solution, but it would also be nice to be able to
> quickly iterate across previous searches. No?

This means adding another layer of complexity.  Remember a mess
of deciding how to switch next-error navigations from different searches?
Switching multiple xref searches will have the same level of confusion.

BTW, shouldn't xref-go-back/forward support next-error-function?  ;-)