[jrubyc] respect Ruby visibility rules (do not generate private methods) #4570
private Ruby methods (without an explicit
(kind of) resolves #4469 (still undecided about what to do with with
The question is whether the old behavior could be considered a feature by some, a feature that we are taking away. I don't feel that way though, so I am on board with including it.
We may want to consider moving jrubyc to a preinstalled gem for 9.2, so it can be updated independently.