Method apply_to_persistent_list

This function is inherently long, as it is dispatching on all valid function-like (IFn) Value types We could further separate each dispatch case into individual functions, but I don't think that's necessary; its not code that will be reused, and it doesn't make the code inherently shorter, it just moves it around In this case, though, I don't find its movement to be one that would increase clarity

(
        &self,
        environment: &Rc<Environment>,
        args: &Rc<PersistentList>,
    )