[Bug other/84889] Ideas on revamping how we format diagnostics

[dmalcolm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84889

--- Comment #2 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Hacker News user "earenndil" suggested:

> What about a line of ─ in between different unassociated errors?
> So if there is a group of related errors that are about the same actual
> problem, or a note associated with an error, they're together, but then
> there's a line of coloured ─ separating them from the next set.

It feels worth prototyping, at least, for gcc 9.