[Bug c++/93739] Ability to print a type name without aborting compilation

[eyalroz at technion dot ac.il]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93739

--- Comment #4 from Eyal Rozenberg <eyalroz at technion dot ac.il> ---
(In reply to Eyal Rozenberg from comment #3)
A couple more points:

* The error I get (https://godbolt.org/z/5GpR2T) doesn't have the "your type
here" string.
* This forces you to define a variable you're not using. So, you need to also
say [[unused]] in some cases - more clutter.