bug#51688: ELC+ELN international/emoji.elc crashes

[Eli Zaretskii]

> From: Robert Pluim <rpluim@gmail.com>
> Cc: 51688@debbugs.gnu.org,  schwab@linux-m68k.org,  akrl@sdf.org
> Date: Tue, 23 Nov 2021 15:03:07 +0100
> 
> - rm lisp/international/emoji.elc
> - rm ~/.emacs.d/eln-cache/29.0.50-whatever/*.eln*
> - run with comp-libgccjit-reproducer set to t

Where does this write the reproducer file, and under what name?  I'd
like to make sure the etc/DEBUG text is accurate.