[Bug fortran/54224] Warn for unused internal procedures

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54224

Dominique d'Humieres <dominiq at lps dot ens.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|FIXED                       |---

--- Comment #23 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
> I'm not a Fortran dev, but I would humbly suggest to add this testcase
> to the regression testsuite before closing the bug.

OK. REOPENED.

> Also:
>
> > pr54224_3.f90:6:0:
> > 
> >     subroutine s2
> > ^
>
> You will get a more precise column info (and better location for '^')
> if Fortran gives a more precise DECL_SOURCE_LOCATION() when generating this tree.

Could you please elaborate?