bug#47757: 13.0.6; Point position after indent-for-tab-command with LaTeX-syntactic-comments

[Tassilo Horn]

Gustavo Barros <gusbrs.2016@gmail.com> writes:

Hi Gustavo,

> Yesterday, after I wrote, I still did some digging.  Considering
> Emacs' and AUCTeX's codebases, `LaTeX-back-to-indentation' only occurs
> in `latex.el'.  Within it, there are four "bare" (no args) calls to
> the function, two of them in `LaTeX-indent-line' which, as far as I
> can tell, is as expected.  The other two are in filling related
> functions, one in `LaTeX-fill-region-as-para-do' the other in
> `LaTeX-fill-move-to-break-point'.  Perhaps those should receive an
> explicit argument, so as to work as expected during filling,
> regardless of what is happening on the side of indentation proper, so
> as to make filling more resilient and independent from indent
> behavior.  WDYT?  As far as I get it, calls in the form
> `(LaTeX-back-to-indentation (if LaTeX-syntactic-comments 'inner
> 'outer))' should reproduce exactly the previous state of things for
> those two functions.

I've made the args explicit now, even so explicit that it became one
'inner and one 'outer, so not depending on `LaTeX-syntactic-comments'.
I've also added a test case for filling with syntactic comments
including code comments.

Bye,
Tassilo