Mypy daemon dependency problem with __call__

[JukkaL]

This fine-grained incremental mode test case fails, probably because of missing dependencies to __call__:

[case testDunderCall]
from a import C

c = C()
c(1)

[file a.py]
class C:
    def __call__(self, x: int) -> None: ...

[file a.py.2]
class C:
    def __call__(self, x: str) -> None: ...

[out]
==                               
main:4: error: Argument 1 to "__call__" of "C" has incompatible type "int"; expected "str"

No error is currently reported when running the test case.