Checking for abstractmethod implementation fails to consider MRO for builtins

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2018-10-25.08:51:44.892>
labels = ['type-bug', 'library', '3.9', '3.10', '3.11']
title = 'Checking for abstractmethod implementation fails to consider MRO for builtins'
updated_at = <Date 2021-12-06.13:46:09.435>
user = 'https://github.com/anntzer'

bugs.python.org fields:

activity = <Date 2021-12-06.13:46:09.435>
actor = 'iritkatriel'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2018-10-25.08:51:44.892>
creator = 'Antony.Lee'
dependencies = []
files = []
hgrepos = []
issue_num = 35063
keywords = []
message_count = 2.0
messages = ['328419', '407805']
nosy_count = 3.0
nosy_names = ['Antony.Lee', 'xtreak', 'iritkatriel']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue35063'
versions = ['Python 3.9', 'Python 3.10', 'Python 3.11']