[Bug c/127464] internal compiler error: in handle_callback_only_attribute with non prototype declaration

[0599jiangyc at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127464

--- Comment #3 from Yuancheng Jiang <0599jiangyc at gmail dot com> ---
this error message (it is before reduction) could be a bit mismatched.