[Bug c/66415] [6 Regression] ice in location_column_from_byte_offset

[manu at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66415

--- Comment #4 from Manuel López-Ibáñez <manu at gcc dot gnu.org> ---
(In reply to Marek Polacek from comment #2)
> Manuel, does that look fine to you?

I wonder why line is NULL, but even if it can only happen due to bugs in other
parts of the compiler, we should not ICE here. Thus, your patch is the right
thing to do in my opinion.