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

[Eli Zaretskii]

> Date: Fri, 1 Apr 2016 12:35:22 +0200
> From: Anders Lindgren <andlind@gmail.com>
> Cc: 23179@debbugs.gnu.org
> 
>  * Restore `M-,' to allow continuing the last tags command. (Of course,
>  this doesn't have to be `tags-loop-continue', it could also be an
>  equivalent xref command, should one exist.)
> 
>  There's no such command.
> 
> Then, how do you search through a set of files using `xref'? Is that even 
> possible?

You do that by using the XREF buffer and the special commands
available there.

> The problem is that we should provide a decent default value for the rest of 
> the world. Currently, there are no
> suitable key binding to continue a tags search, and the built-in 
> documentation doesn't offer any help.

I think the only viable solution is to provide a replacement for
tags-search that uses the xref UI to browse the results.