[Bug c++/124893] Error on lambda expression passed to concept with decltype(auto) parameter

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124893

--- Comment #1 from Drea Pinski <pinskia at gcc dot gnu.org> ---
EDG rejects it too:
"<source>", line 9: error: template constraint not satisfied
        x<int>;
             ^
"<source>", line 5: note: type constraint failed for "int"
  template<A<[] {}>>
           ^