[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 #1 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Example of Rust error (showing colorization):
  https://i.redd.it/qm4oceuuckyy.png