Enable usage of object.__orig_class__ in __init__

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2022-02-13.23:49:55.711>
labels = ['type-feature', 'library', '3.11']
title = 'Enable usage of object.__orig_class__ in __init__'
updated_at = <Date 2022-02-14.17:00:51.359>
user = 'https://github.com/Gobot1234'

bugs.python.org fields:

activity = <Date 2022-02-14.17:00:51.359>
actor = 'gvanrossum'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2022-02-13.23:49:55.711>
creator = 'Gobot1234'
dependencies = []
files = []
hgrepos = []
issue_num = 46743
keywords = []
message_count = 11.0
messages = ['413198', '413200', '413201', '413204', '413205', '413207', '413212', '413221', '413232', '413236', '413238']
nosy_count = 6.0
nosy_names = ['gvanrossum', 'JelleZijlstra', 'Gobot1234', 'kj', 'AlexWaygood', 'med2277']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue46743'
versions = ['Python 3.11']