only to find my way back to the linked issue

Yeah sorry, I raised issues in acorn, babel and typescript together (and PR'd it into babel) 😄

My only question is do you want to add a codefix for these too?

Sure, I'd love to!
Just triple checking my understanding of the codebase is right - is this the correct place to learn about, and add code fixes?
https://github.com/microsoft/TypeScript/tree/master/src/services/codefixes