Correct "FuncBase.has_self_or_cls_argument()", its relates and an error message

[hyperkai]

Fix: #20941

I corrected the method name below, its relates and the error message below:

has_self_or_cls_argument -> has_self_or_cls_parameter

From 'Redundant "Self" annotation for the first method argument'
To   'Redundant "Self" annotation for the first method parameter'

But if you're worried that mypy may be broken, I'll revert the changes except the error message above.

[github-actions]

According to mypy_primer, this change doesn't affect type check results on a corpus of open source code. ✅