[Bug c++/99590] ICE when pack expansion with lambda

[hewillk at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99590

--- Comment #1 from 康桓瑋 <hewillk at gmail dot com> ---
I think this is a valid code:

void g(auto... args) {
  ([args...](auto...){}(args   ), ...);
}

void f(auto... args) {
  ([args   ](auto...){}(args...), ...);
}

int main() { 
  g(0, 1); // this one ICE
  f(0, 1); // this one works
}