[issue46942] Convert Object/classobject.c to Argument Clinic

Change by Oleg Iarygin : -- keywords: +patch pull_requests: +29834 stage: -> patch review pull_request: https://github.com/python/cpython/pull/31711 ___ Python tracker ___ ___

[issue46942] Convert Object/classobject.c to Argument Clinic

New submission from Oleg Iarygin : - Convert method.__reduce__, method.__new__, and instancemethod.__new__ to AC. It looks like nothing else can be converted in classobject.c. This is my first time working with AC so I could make some mistakes. - Fix found mismatches in method.__new__ where