in xml.dom.minidom, Node and DocumentLS appear to be missing __slots__

[ariebovenberg]

BPO	46247
Nosy	@ariebovenberg

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2022-01-03.18:41:15.874>
labels = ['library', '3.9', '3.10', '3.11']
title = 'in xml.dom.minidom, Node and DocumentLS appear to be missing __slots__'
updated_at = <Date 2022-01-14.23:31:22.801>
user = 'https://github.com/ariebovenberg'

bugs.python.org fields:

activity = <Date 2022-01-14.23:31:22.801>
actor = 'eric.araujo'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2022-01-03.18:41:15.874>
creator = 'ariebovenberg'
dependencies = []
files = []
hgrepos = []
issue_num = 46247
keywords = []
message_count = 1.0
messages = ['409605']
nosy_count = 1.0
nosy_names = ['ariebovenberg']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = None
url = 'https://bugs.python.org/issue46247'
versions = ['Python 3.9', 'Python 3.10', 'Python 3.11']

[ariebovenberg]

(as instructed in bpo-46244, I've created this ticket)

The classes Node and DocumentLS don't define __slots__, but a number of subclasses do.
This appears to be a mistake.

If so, I'd like to create a PR to fix it.