Fix false positive bad-super-call in a nested function that acts as a method of another class

[ekanshul]

Type of Changes

	Type
✓	🐛 Bug fix
	✨ New feature
	🔨 Refactoring
	📜 Docs

Description

bad-super-call compares the first argument of every super() call found in a method, including calls inside functions nested in that method, with the enclosing class. A nested function can itself become a method of another class, as in warnings.deprecated.__call__ in the stdlib (Lib/_py_warnings.py):

def __call__(self, arg):
    def __init_subclass__(cls, *args, **kwargs):
        return super(arg, cls).__init_subclass__(*args, **kwargs)
    arg.__init_subclass__ = classmethod(__init_subclass__)

Here super(arg, cls) is correct, yet pylint reported Bad first argument 'arg' given to super().

The check now skips a super() call inside a nested function when its second argument is one of that nested function's own parameters (cls above). A nested helper that still passes the method's own self, such as super(Other, self).m(), is still reported; the functional test covers both cases.

Closes #11313

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.41%. Comparing base (f8ea10a) to head (8bf2bd7).

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #11314   +/-   ##
=======================================
  Coverage   96.41%   96.41%           
=======================================
  Files         178      178           
  Lines       20078    20083    +5     
=======================================
+ Hits        19358    19363    +5     
  Misses        720      720           

Files with missing lines	Coverage Δ
pylint/checkers/newstyle.py	96.42% <100.00%> (+0.35%)	⬆️

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[github-actions]

🤖 According to the primer, this change has no effect on the checked open source code. 🤖🎉

This comment was generated for commit 8bf2bd7