Bug description

As mentioned in merge-request 8674 comment, self is counted as one of the arguments in the too-many-arguments calculation.
This means that if a user creates a function with 5 parameters, the message is not emitted whereas if the user creates a method with the same 5 parameters, then the message will be emitted. This behaviour could be surprising.

No message emitted:

def name1(param1, param2, param3, param4, param5):
    ...

Message is emitted:

class A:
    def name2(self, param1, param2, param3, param4, param5):  # R0913: Too many arguments (6/5) (too-many-arguments)
        ...

Configuration

No response

Command used

pylint example.py

Pylint output

R0913: Too many arguments (6/5) (too-many-arguments)

Expected behavior

No message emitted for this example

Pylint version

pylint 3.0.0b1
astroid 3.0.0a2
Python 3.10.4

OS / Environment

No response

Additional dependencies

No response