[Bug c++/99850] [P1102R2] reject valid lambda syntax in C++23

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99850

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 50592
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50592&action=edit
gcc11-pr99850.patch

Untested fix.