Hey!

As you may perhaps know, Zeitwerk does not support JRuby as of today.

Zeitwerk exploits some undocumented behavior of CRuby, and replicating that is really your call. In that sense, the purpose of this issue is just to share with you this Ruby compatibility test, so that you are aware of that specific list of properties the library depends on. Would be super that Zeitwerk is portable, but it touches a gray area perhaps, so really up to you guys.

References #5403.