[fix] AttributeError crash when a slice is used as a class decorator

[Pierre-Sassoulas]

Type of Changes

	Type
✓	🐛 Bug fix

Description

This was partially implemented by an AI bot (codegen-bot), credited as co-author in the commit. I've done some chores (moving functional tests, fixing the new test, creating the changelog, checking that the changes are actually required and that the not required changes are not actually another crash), and some I did not (creating branches, it could have opened the PR if I wasn't working on a fork, creating the regression tests, making the initial fix). Tried to kept the history truthful to what happened. Overall not sure if it's more work or less work than just copy pasting the regression code and fixing myself (probably more), but it certainly feel new and exciting.

Suggestions on what to try next with this AI bot are welcome, I started with "noqa" handling but it seems a little too complicated. I probably should use this on task with less finesse and more grunt work, like refactor (?)

Closes #10334

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.90%. Comparing base (8a733fc) to head (8be5e62).

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #10350   +/-   ##
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  Coverage   95.90%   95.90%           
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  Files         176      176           
  Lines       19122    19122           
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  Hits        18339    18339           
  Misses        783      783           

Files with missing lines	Coverage Δ
pylint/checkers/deprecated.py	99.06% <100.00%> (ø)
pylint/checkers/utils.py	95.92% <ø> (ø)

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[Copilot]

Pull Request Overview

This pull request fixes an AttributeError crash that occurred when a slice object was used as a class decorator. The changes include the addition of regression tests to reproduce the issue and adjustments in the Pylint checkers to prevent incorrect attribute access during inference.

Reviewed Changes

Copilot reviewed 4 out of 5 changed files in this pull request and generated no comments.

File	Description
tests/functional/r/regression_02/regression_10334.txt	Adds expected test output indicating non-callable error.
tests/functional/r/regression_02/regression_10334.py	Provides a test case using a slice as a decorator.
pylint/checkers/utils.py	Updates attribute checks to safely verify presence of qname.
pylint/checkers/deprecated.py	Adds a qname attribute check to avoid AttributeError.

Files not reviewed (1)

• doc/whatsnew/fragments/10334.bugfix: Language not supported

[github-actions]

🤖 Effect of this PR on checked open source code: 🤖

Effect on django:
The following messages are no longer emitted:

1. invalid-name:
   Attribute name "ALLOWED_HOSTS" doesn't conform to snake_case naming style
   https://github.com/django/django/blob/1831f7733d3ef03d1ca7fac3e8d9f4c5e3e3375e/django/test/utils.py#L141
2. invalid-name:
   Attribute name "DEBUG" doesn't conform to snake_case naming style
   https://github.com/django/django/blob/1831f7733d3ef03d1ca7fac3e8d9f4c5e3e3375e/django/test/utils.py#L144
3. invalid-name:
   Attribute name "EMAIL_BACKEND" doesn't conform to snake_case naming style
   https://github.com/django/django/blob/1831f7733d3ef03d1ca7fac3e8d9f4c5e3e3375e/django/test/utils.py#L147
4. invalid-name:
   Attribute name "MIGRATION_MODULES" doesn't conform to snake_case naming style
   https://github.com/django/django/blob/1831f7733d3ef03d1ca7fac3e8d9f4c5e3e3375e/django/db/backends/base/creation.py#L79

Effect on pandas:
The following messages are now emitted:

1. attribute-defined-outside-init:
   Attribute 'name' defined outside init
   https://github.com/pandas-dev/pandas/blob/e5898b8d33ac943a60250e1466006c073a506e8c/pandas/core/frame.py#L10693

This comment was generated for commit 8be5e62