False positive when using an unpacked typed dict for variadic keyword arguments with a field overlapping a positional only argument

[Viicos]

Code sample in pyright playground

from typing import Any, Unpack, TypedDict


def fine(a: int, /, **kwargs: Any):
    print(a, kwargs)

fine(1, a=2)
#> 1, {'a': 2}

class TD(TypedDict):
    a: int

def bug(a: int, /, **kwargs: Unpack[TD]):
    pass

bug(1, a=2)  # error: Parameter "a" is already assigned
#> 1, {'a': 2}

[erictraut]

Thanks for the issue.

This has the same root cause as #8964, so fixing one will fix the other.

[erictraut]

This is addressed in pyright 1.1.382.