What should happen when the assert message expression throws?

[Dukc]

On Sunday, 20 November 2022 at 18:30:00 UTC, Ali Çehreli wrote:
> On 11/19/22 00:11, Dukc wrote:
>
> > In my opinion the fix is clear.
> [...]
> > Should the error generation exception be the `.next` member of
> > `AssertError`? Probably, but I'm not sure.
>
> I think the following is what you describe:
>
> [snip]

Yes, that's correct.

>
> Discussion: As I commented on the bug report as well, D is 
> already in the best-effort business when it comes to Errors:

What does "best-effort" mean?