Vance Palacio

> where the "but you probably" bit is added whenever the missing instance includes only types defined outside the current package. Oh yea that's a cool idea - that extra...

Ticket created here: https://gitlab.haskell.org/ghc/ghc/-/issues/21086

I also think this would be nice to have in the official documentation. It took a bit of time for me to figure out myself. I'll post a code-snippet here...