[Bug c++/121777] [15/16 Regression] ICE with returning a generic lambda to a template function

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121777

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
  gcc_checking_assert (!TYPE_REF_P (TREE_TYPE (expr)));

Yes that shows it explictly an assert which is only enabled with checking.