Improve errors related to frozen modules.

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2021-10-05.15:52:00.008>
labels = ['interpreter-core', 'type-bug', '3.11']
title = 'Improve errors related to frozen modules.'
updated_at = <Date 2021-10-29.20:55:22.610>
user = 'https://github.com/ericsnowcurrently'

bugs.python.org fields:

activity = <Date 2021-10-29.20:55:22.610>
actor = 'lukasz.langa'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Interpreter Core']
creation = <Date 2021-10-05.15:52:00.008>
creator = 'eric.snow'
dependencies = []
files = []
hgrepos = []
issue_num = 45379
keywords = ['patch']
message_count = 5.0
messages = ['403246', '404845', '404867', '405260', '405345']
nosy_count = 5.0
nosy_names = ['barry', 'brett.cannon', 'lukasz.langa', 'eric.snow', 'FFY00']
pr_nums = ['29180', '29189', '29190']
priority = 'normal'
resolution = None
stage = 'patch review'
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue45379'
versions = ['Python 3.11']