[ruby-core:114675] [Ruby master Feature#19871] Add __owner__

Issue #19871 has been reported by konsolebox (K B). ---------------------------------------- Feature #19871: Add __owner__ https://bugs.ruby-lang.org/issues/19871 * Author: konsolebox (K B) * Status: Open * Priority: Normal ---------------------------------------- Which will give the owner of the currently executing method. `method(__method__).owner` or `method(__callee__).owner` isn't enough since it may return a different owner if the method is overridden. Relying on calling the name of its owner is also theoretically not reliable since the constant can be overshadowed and it makes code less portable when moving it from one namespace to another. -- https://bugs.ruby-lang.org/