leastfixedpoint

Archived tweet #11214 from the @leastfixedpoint Twitter Archive
@bodil I'm still a Rust beginner, so I ended up doing this to abstract over Box/Rc/Arc for a Json-like Value type: gitlab.com/preserves/pres… The impls for Rc and Arc are at the end of the file. It was a pain to do but it worked for me!