[Bug fortran/67277] segfault when passing a missing optional argument to an elemental intrinsic

[mikael at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67277

--- Comment #3 from Mikael Morin <mikael at gcc dot gnu.org> ---
(In reply to Mikael Morin from comment #2)
> (In reply to Mikael Morin from comment #1)
> > I hope it works that way.
> 
> Nope, it doesn't.  :-(

The symbol is left uninitialized, it seems.
And reverting the symbol.c part doesn't work either, because then the vptr is
cleared.