bug#61996: 30.0.50; Submitting elixir-ts-mode and heex-ts-mode

[Eli Zaretskii]

> From: Wilhelm Kirschbaum <wkirschbaum@gmail.com>
> Cc: 61996@debbugs.gnu.org, casouri@gmail.com, theo@thornhill.no
> Date: Sat, 11 Mar 2023 20:01:32 +0200
> 
> > Please accompany the changes with a commit log message according
> > to our conventions (see CONTRIBUTE for the conventions; search for
> > "ChangeLog" there).  In this case, just "New file" log should be
> > sufficient for the new files you add.
> >
> Thanks, was not aware of it. I hope it is correct in the new 
> patches. 

Yes, it is.  Thanks.

> The new patches should hopefully cover all of the above issues. 

Almost there.  Byte compiler shows warnings, which I think are real
problems in the code:

  In elixir-ts--call-parent-start:
  progmodes/elixir-ts-mode.el:459:38: Warning: Unused lexical argument `node'
  progmodes/elixir-ts-mode.el:463:15: Warning: reference to free variable 
`parent'

  In elixir-ts--forward-sexp:
  progmodes/elixir-ts-mode.el:482:8: Warning: reference to free variable 
`heex-ts--sexp-regexp'