[Bug c++/103871] [11/12 Regression] co_await causes build error

[iains at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103871

--- Comment #13 from Iain Sandoe <iains at gcc dot gnu.org> ---
(In reply to Jason Merrill from comment #12)
> Should we revert the backport for 11.3?

I think that will regress other tests (but admit I did not have time to try
it).