[Bug c/63510] Wrong line number in Wstrict-overflow message

[ibuclaw at ubuntu dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63510

--- Comment #1 from Iain Buclaw <ibuclaw at ubuntu dot com> ---
> Reduced to the following code, which shows both the correct and wrong line.

But perhaps the wrong column information.