[Bug c++/118672] ICE on template lambda expression

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118672

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2025-01-27
            Summary|ICE on invalid template     |ICE on template lambda
                   |lambda expression           |expression
     Ever confirmed|0                           |1

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
You can make it valid but undefined by removing the return. That is:
```
auto l = []<int>() -> decltype([]<int=0>{})
    { }.template operator()<0>();
```