gh-121266: Change dict check_lookup() return type to int

[vstinner]

• Issue: always_inline makes build fail with -Og and --without-pydebug #121266

[miss-islington-app]

Thanks @vstinner for the PR 🌮🎉.. I'm working now to backport this PR to: 3.13.
🐍🍒⛏🤖

[bedevere-app]

GH-121949 is a backport of this pull request to the 3.13 branch.

[bedevere-bot]

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot s390x Fedora 3.13 has failed when building commit 2fff3c4.

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/#builders/1403/builds/221) and take a look at the build logs.
4. Check if the failure is related to this commit (2fff3c4) 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/#builders/1403/builds/221

Failed tests:

• test_pyrepl

Failed subtests:

• test_inspect_keeps_globals_from_inspected_module - test.test_pyrepl.test_pyrepl.TestMain.test_inspect_keeps_globals_from_inspected_module

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

==

Click to see traceback logs

Traceback (most recent call last):
  File "/home/dje/cpython-buildarea/3.13.edelsohn-fedora-z/build/Lib/test/test_pyrepl/test_pyrepl.py", line 995, in _run_repl_globals_test
    self.fail(f"{var}= not found in output")
    ~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: FOO= not found in output


Traceback (most recent call last):
  File "/home/dje/cpython-buildarea/3.13.edelsohn-fedora-z/build/Lib/test/test_pyrepl/test_pyrepl.py", line 995, in _run_repl_globals_test
    self.fail(f"{var}= not found in output")
    ~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: __name__= not found in output

[bedevere-bot]

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot AMD64 Ubuntu NoGIL Refleaks 3.13 has failed when building commit 2fff3c4.

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/#builders/1431/builds/295) and take a look at the build logs.
4. Check if the failure is related to this commit (2fff3c4) 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/#builders/1431/builds/295

Failed tests:

• test_free_threading

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

==

Click to see traceback logs

remote: Enumerating objects: 4, done.        
remote: Counting objects:  25% (1/4)        
remote: Counting objects:  50% (2/4)        
remote: Counting objects:  75% (3/4)        
remote: Counting objects: 100% (4/4)        
remote: Counting objects: 100% (4/4), done.        
remote: Compressing objects:  33% (1/3)        
remote: Compressing objects:  66% (2/3)        
remote: Compressing objects: 100% (3/3)        
remote: Compressing objects: 100% (3/3), done.        
remote: Total 4 (delta 1), reused 1 (delta 1), pack-reused 0        
From https://github.com/python/cpython
 * branch                  3.13       -> FETCH_HEAD
Note: switching to '2fff3c44b3d00dc20dc60dd7fc6714403fe7eaa8'.

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by switching back to a branch.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -c with the switch command. Example:

  git switch -c <new-branch-name>

Or undo this operation with:

  git switch -

Turn off this advice by setting config variable advice.detachedHead to false

HEAD is now at 2fff3c44b3 [3.13] gh-121266: Change dict check_lookup() return type to int (GH-121581) (#121949)
Switched to and reset branch '3.13'

configure: WARNING: no system libmpdecimal found; falling back to bundled libmpdecimal (deprecated and scheduled for removal in Python 3.15)

make: *** [Makefile:2251: buildbottest] Error 2