Improve LOAD_METHOD specialization

[Fidget-Spinner]

BPO	45107
Nosy	@markshannon, @brandtbucher, @Fidget-Spinner
PRs	bpo-45107: Make LOAD_METHOD_CLASS safer and faster, clean up comments #28177 bpo-45107: Specialize LOAD_METHOD for instances with dict. #31531

^{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 2021-09-05.16:39:16.732>
labels = ['interpreter-core', '3.11']
title = 'Improve LOAD_METHOD specialization'
updated_at = <Date 2022-02-24.19:35:01.870>
user = 'https://github.com/Fidget-Spinner'

bugs.python.org fields:

activity = <Date 2022-02-24.19:35:01.870>
actor = 'Mark.Shannon'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Interpreter Core']
creation = <Date 2021-09-05.16:39:16.732>
creator = 'kj'
dependencies = []
files = []
hgrepos = []
issue_num = 45107
keywords = ['patch']
message_count = 3.0
messages = ['401096', '402035', '413935']
nosy_count = 3.0
nosy_names = ['Mark.Shannon', 'brandtbucher', 'kj']
pr_nums = ['28177', '31531']
priority = 'normal'
resolution = None
stage = 'patch review'
status = 'open'
superseder = None
type = None
url = 'https://bugs.python.org/issue45107'
versions = ['Python 3.11']

[Fidget-Spinner]

I plan to do two improvements over the initial implementation:

1. General comments cleanup and optimize LOAD_METHOD_CLASS.

2. Implement LOAD_METHOD_SUPER, for super().meth() calls.

See bpo-44889 for the precursor.

[Fidget-Spinner]

New changeset 70bed6f by Ken Jin in branch 'main':
bpo-45107: Make LOAD_METHOD_CLASS safer and faster, clean up comments (GH-28177)
70bed6f

[markshannon]

New changeset 2a6ece5 by Mark Shannon in branch 'main':
bpo-45107: Specialize LOAD_METHOD for instances with dict. (GH-31531)
2a6ece5

[kumaraditya303]

Superseded by #92777