oops, I made some stupid mistakes

And seems like the @overload case does not apply to this fix

I add new logic in semanal.py to check if the class attribute we are accessing is an overloaded function if so, we check whether we are referencing it from a function with the same name, i.e. a variant of these overloads

Good catch and thanks for the careful review! I check the logic again and indeed there are some mistakes, here's the update:

• update logic in is_textually_before_statement to ensure if we are referencing an overloaded item, the function return False
• add negative test
• For the logic in is_overloaded_item, I have to point out that neither my previous solution nor the solution purposed by you work without modification.
  In this case, we need to check if a FuncDef is one of the overloaded variants and these variants are expressed in either Decorator or FuncDef. The former one is tricky as we need one more step to extract its decorated function for checking. I think we can safely ignore the case when statement i s a Decorator here

To address that node.impl can also be a Decorator, the logic would be long enough to make it hard to understand, so I deliberately separate single return into two booleans to make the code easy to understand.