Resolve `__call__` correctly even when it's a descriptor

[grievejia]

Describe the Bug

Minimal repro:

class SomeCallable:
    def __call__(self, x: int) -> str:
        return "a"

class Descriptor:
    def __get__(self, instance: object, owner: type | None = None) -> SomeCallable:
        return SomeCallable()

class B:
    __call__: Descriptor = Descriptor()

b_instance = B()
reveal_type(b_instance(1))

Expected: reveals str
Actual: Expected a callable, got B

Sandbox Link

https://pyrefly.org/sandbox/?code=MYGwhgzhAEDKD2BbApgYTCcAjEyBcAUNMdACbIBm0A+tcBiLQBQTIgUA00AHntAJYA7AC4BKaAFoAfNAjCAToRLLo85MICu8wdABEYXQQKhIMACLIIwefwAOw+IqIlyVWgHN1zVuy5C5YILA+NDwWABWyMDCXPAA7oLIitDCAJ62yNAAPtAAcvCJ0AC8eQXI4tJwSGgMYDj4ziqq6lo6CCjomHW4TKJGJlDQAEJKJLT0mLR8FlY29o7F0DPWdg7yvUZY1P7CgcGLQxtqAG7IGNRpGUxbO3vITACMoqJAA

(Only applicable for extension issues) IDE Information

No response

[asukaminato0721]

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