[Bug c++/123667] [14/15/16 Regression] ICE in finish_decltype_type when using decltype on a structured binding inside a generic lambda

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123667

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
      Known to work|                            |13.4.0
      Known to fail|                            |14.1.0
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2026-01-18

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmed.
Semi reduced to a C++17 testcase:
```
#include <tuple>
int main() {
  auto [x, y] = std::tuple<int, int>{0, 2};
    [](auto t) {
      using z = decltype(x);
    }(1);
}
```