[Bug c++/116952] Error on lambda NTTP argument to type constraint in template parameter list of generic lambda

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116952

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Note even this works:
```
template<typename, auto>
concept A = true;

constexpr auto t = [] {};

auto b = []<A<t>> {};
```