[Bug c++/118698] [14/15 Regression] Compiler ICE on concept code accepted by MSVC and clang

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118698

--- Comment #14 from Patrick Palka <ppalka at gcc dot gnu.org> ---
The GCC 13 gimple for the reduced testcase is:

;; Function void __static_initialization_and_destruction_0() (null)
;; enabled by -tree-original


<<cleanup_point <<< Unknown tree: expr_stmt
  (void) (ttt = <<< error >>>) >>>>>;
<<< Unknown tree: expr_stmt
  <<< Unknown tree: void_cst >>> >>>;

so before r14-9938 this was wrong-code. Shall we remove the regression markers
from this PR then?