[Bug c++/95892] Wrong line number in "-Wsign-conversion" warning message

[haoxintu at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95892

--- Comment #3 from Haoxin Tu <haoxintu at gmail dot com> ---
(In reply to Jonathan Wakely from comment #1)
> This is a well-known issue where diagnostics in function parameter-lists all
> have the location of the closing brace.

Thank you, Jonathan. 

I guess bug 95831 has the same issue, too.