Bidirectional inference does not consider parameter types of constructors

Consider:
```py
from typing import Literal

def f(default: dict[Literal["value"], str]):
    pass

# this works fine
f({"value": "hello"})

class C:
    def __init__(self, default: dict[Literal["value"], str]):
        pass

# this throws an error
C({"value": "hello"})
```
https://play.ty.dev/c4307737-6697-4b77-9192-1e1e6e14e70a