Supporting strict imports

Yes, Keith and I are referring to issues like that one. However, adding MyFW to ViewController.swift's dependencies wouldn't be a breaking change. What I'd really like to know is if you'd consider that a bug or if there's something that you know of that depends on those modules being missing from the dependencies deliberately. It'd be good to know how you feel about this before we put in the effort to collect all these cases with minimal reproduction examples.