Using `type(other) is type(self)` only works when revealing types

[George-Ogden]

Bug Report

from typing import reveal_type


class X:
 y: int

 def __eq__(self, other: object) -> bool:
 return type(other) is reveal_type(type(self)) and other.y == self.y

This works as you would expect - no errors.
But make a small change and

from typing import reveal_type


class X:
 y: int

 def __eq__(self, other: object) -> bool:
 return type(other) is type(self) and other.y == self.y

error: "object" has no attribute "y"

[George-Ogden]

Related to #20041