bug#57562: [PATCH] * lisp/emacs-lisp/comp.el (comp-run-async-workers): Fail more gracefully

[Stefan Monnier]

> I have trouble seeing the actual change amongst unrelated whitespace
> changes.  Please show a patch with the minimal necessary change,
> without all the reformatting.  Emacs 28.2 is so close to a release
> that playing whitespace and formatting games is not appropriate there.

BTW, it might be worth checking with the Debian maintainers to make sure
we fix the problem they bumped into while preparing the `emacs` package
for 28.1 before we release 28.2.

I think they also found serious problems when you use a build with native
compilation enabled but where the `.el` files are missing (which is not
the "recommended" situation in Debian, but is quite common).


        Stefan