Reverse operator on BoolElement return incorrect result

[abelcheung]

Due to current implementation in annotation, BoolElement inherits from int instead of bool (actually bool is @final and not subclassable). This causes inconsistency like:

reveal_type(bool | BoolElement) -> int
reveal_type(bool ** BoolElement) -> Any

The only fix is to explicitly list all dunders for all subclasses of ObjectifiedDataElement, so they are no more subclass of builtin types, and therefore overridable.