bug#39121: 27.0.60; occur: Add bindings for next-error-no-select

[Lars Ingebrigtsen]

Mattias Engdegård <mattiase@acm.org> writes:

> All right, this might work. Patch!

Skimming the patch, it makes sense to me.  (But I didn't try it.)

> The immediate visible benefit is that all matches on the same line are
> highlighted, not just the first one. It also fixes the compatibility
> problems mentioned above by removing occur-highlight-regexp entirely.
>
> External packages that populate occur-mode buffers themselves should
> still work, since the old `occur-target` property format is still
> recognised. In those cases we just highlight from the first match to
> the end of the line.

Great; go ahead and push.

(And I see that `occur-highlight-regexp' was introduced after emacs-27,
so it's indeed OK to just remove it like your patch does.)

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