-class Object
- meth ==(o: nullable Object): Bool do return self is o
- meth !=(o: nullable Object): Bool do return not (self == o)
- meth output is intern
+interface Object
+ fun ==(o: nullable Object): Bool do return self.is_same_instance(o)
+ fun !=(o: nullable Object): Bool do return not (self == o)
+ fun is_same_instance(other: nullable Object): Bool is intern