[Bug c++/116051] inconsistent handling of void typedefs in otherwise empty parameter lists

[ted at lyncon dot se via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116051

--- Comment #1 from Ted Lyngmo <ted at lyncon dot se> ---
I realized that T in the working usages is non-dependent. I think we can close
this right away.