[LUR-25] Try to remove uneeded pub modifiers through brute-force

[huitseeker]

In the course of making really sure the visibility modifiers in Arecibo were set as tightly as possible, I've written a small script to brute-force that:
https://gist.github.com/huitseeker/99ba921da591497de7879d1724e3e96b

See some selected results in lurk-lang/arecibo#239

It would be interesting to run this on the Lurk code base and see if there are pub annotations that do not need to be there.

Caution

We should try to avoid breaking public dependents needlessly. When in doubt, use the #[deprecated(since = "...")] attribute rather than remove blindly. Note this script will turn up false positives, a typical example being error types which need to be public to surface errors from your API.

Warning

rename 'gfind' to 'find' and 'gsed' to 'sed' in the script before using if you're on a Linux machine where gnu variants of these utilities are the default.

_{From SyncLinear.com | LUR-25}