bug#23179: 25.0.92; Restore `M-,' to continue etags search

[Anders Lindgren]

Hi!

Please describe the use case where you needed to invoke
tags-loop-continue.  I think we made an effort to eliminate these use
cases (by providing alternatives that are built on top of xref), but
maybe some slipped through the cracks.

The basic use case is `M-x tags-search RET whatever RET'.

This places the cursor at the first occurrence of "whatever". In earlier Emacs versions, I used `M-,' to take me to the next occurrence.

Maybe there is an "xref" command to continue the search, unfortunately, I have no clue which. The doc string to `tags-search' only mentions `tags-loop-continue'.

> (I expect `xref-pop-marker-stack' to be used relatively seldom.)

Like Dmitry, I use it all the time.  You really cannot avoid using it,
since, unlike find-tag, xref-find-definitions doesn't push a mark
storing the place where you invoked "M-.", so the only reasonable way
of getting back is with "M-,".

Ok, I can see the merits of the command, but I don't think it should take up a prominent key binding like `M-,', especially since that has an established use.

    -- Anders