bpo-42972: Fully implement GC protocol for arraymodule types

[erlend-aasland]

https://bugs.python.org/issue42972

Automerge-Triggered-By: GH:pablogsal

[erlend-aasland]

@pablogsal: I'm adding skip news, as is in GH-26074.

[miss-islington]

Thanks @erlend-aasland for the PR, and @pablogsal for merging it 🌮🎉.. I'm working now to backport this PR to: 3.10.
🐍🍒⛏🤖

[bedevere-bot]

GH-26362 is a backport of this pull request to the 3.10 branch.

[bedevere-bot]

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot x86 Gentoo Non-Debug with X 3.x has failed when building commit bd404cc.

What do you need to do:

1. Don't panic.
2. Check the buildbot page in the devguide if you don't know what the buildbots are or how they work.
3. Go to the page of the buildbot that failed (https://buildbot.python.org/all/#builders/58/builds/253) and take a look at the build logs.
4. Check if the failure is related to this commit (bd404cc) or if it is a false positive.
5. If the failure is related to this commit, please, reflect that on the issue and make a new Pull Request with a fix.

You can take a look at the buildbot page here:

https://buildbot.python.org/all/#builders/58/builds/253

Failed tests:

• test_idle

Failed subtests:

• test_incremental_editing - idlelib.idle_test.test_colorizer.ColorDelegatorTest

Summary of the results of the build (if available):

== Tests result: FAILURE then FAILURE ==

416 tests OK.

10 slowest tests:

• test_peg_generator: 18 min 4 sec
• test_concurrent_futures: 4 min 10 sec
• test_tokenize: 4 min 4 sec
• test_lib2to3: 3 min 20 sec
• test_unparse: 3 min 18 sec
• test_multiprocessing_spawn: 2 min 57 sec
• test_asyncio: 2 min 56 sec
• test_unicodedata: 1 min 47 sec
• test_multiprocessing_forkserver: 1 min 45 sec
• test_gdb: 1 min 36 sec

1 test failed:
test_idle

10 tests skipped:
test_ctypes test_devpoll test_ioctl test_kqueue test_msilib
test_startfile test_winconsoleio test_winreg test_winsound
test_zipfile64

1 re-run test:
test_idle

Total duration: 44 min 50 sec

Click to see traceback logs

Traceback (most recent call last):
  File "/buildbot/buildarea/cpython/3.x.ware-gentoo-x86.nondebug/build/Lib/idlelib/idle_test/tkinter_testing_utils.py", line 54, in new_test_method
    raise exception
  File "/buildbot/buildarea/cpython/3.x.ware-gentoo-x86.nondebug/build/Lib/idlelib/idle_test/tkinter_testing_utils.py", line 38, in after_callback
    next(test_generator)
  File "/buildbot/buildarea/cpython/3.x.ware-gentoo-x86.nondebug/build/Lib/idlelib/idle_test/test_colorizer.py", line 597, in test_incremental_editing
    eq(text.tag_nextrange('KEYWORD', '1.0'), ())
AssertionError: Tuples differ: ('1.0', '1.1') != ()


Traceback (most recent call last):
  File "/buildbot/buildarea/cpython/3.x.ware-gentoo-x86.nondebug/build/Lib/idlelib/idle_test/tkinter_testing_utils.py", line 54, in new_test_method
    raise exception
  File "/buildbot/buildarea/cpython/3.x.ware-gentoo-x86.nondebug/build/Lib/idlelib/idle_test/tkinter_testing_utils.py", line 38, in after_callback
    next(test_generator)
  File "/buildbot/buildarea/cpython/3.x.ware-gentoo-x86.nondebug/build/Lib/idlelib/idle_test/test_colorizer.py", line 569, in test_incremental_editing
    eq(text.tag_nextrange('KEYWORD', '1.0'), ('1.0', '1.2'))
AssertionError: Tuples differ: () != ('1.0', '1.2')