Describe the Bug

from dataclasses import dataclass, KW_ONLY

@dataclass
class Foo:
    _: KW_ONLY
    option: int | None = None


@dataclass
class Bar(Foo):
    arg: str

Bar("arg")  # ❌️ raises [unexpected-positional-argument]

Because all arguments in the parent class are KW_ONLY, we can add POSITIONAL_OR_KEYWORD arguments in the dataclass subclass.

Sandbox Link

https://pyrefly.org/sandbox/?project=N4IgZglgNgpgziAXKOBDAdgEwEYHsAeAdAA4CeS4ATrgLYAEmqALqgMZSpxzx0Q3G5KTBszYcuAGjoBpAOoB9APIA5ADIBNADrptAAUYt2nONqNc6AMVy5E2uvbrzEMhSo12HuYkwi50ziHRhAB86ZT8YOgBeMIjtePR9UTMTdBS6ACFUSgAKK1wASlt0BzpsgHNnOCZKBKzczRAKxoL7AGI6QBlyQHg-ukpUCG44OgBtAFd0GHxiGFYmGEwAWgE4CB8-VChFirGaGCCAXRAJEDGfKDgSckQQDoBVc7XSOjAJud90VO1MGDAXwRozHk6F22BguXwASCrUWAD46NVKMVSpQYEwxpQSmBGspQeDnMB8ABfRraY4gMiosBQUiEJi0KAUDoABVIVJpCIwOAIdFYfkg5QxzA%2BhG0HQAyjBIgALJhMYhwRAAeiVlN%2BNMIgnKSv2SswuFYcCVfPQAqF63QSv%2BlDKADcBhxsLBefyIIL%2Bha6F4LZdtGQmNK-ItbeDVn5onRGgBmQgARgATKT0CAiSc2D4QxZoDAKGgsHgiGQU0A

(Only applicable for extension issues) IDE Information

No response