`MakeCallback` can return an empty `MaybeLocal<>` even if no
exception has been generated, in particular, if
we were already terminating the current thread *before* the `TryCatch`
scope started, which meant it would not have an exception to report.
PR-URL: https://github.com/nodejs/node/pull/26124
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
