'Maybe you forgot to use "await"?' has wrong error code

[JelleZijlstra]

from typing import AsyncGenerator


async def f() -> AsyncGenerator[str, None]:
    raise Exception("fooled you")


async def g() -> None:
    async for y in f():  # type: ignore[attr-defined]
        print(y)

% mypy ~/py/tmp/asyncgen.py
/Users/jelle/py/tmp/asyncgen.py:9: note: Maybe you forgot to use "await"?
/Users/jelle/py/tmp/asyncgen.py:9: note: Error code "misc" not covered by "type: ignore" comment
Success: no issues found in 1 source file

Mypy produces an error code of "attr-defined" (correctly) and produced a note that is also correct, but apparently the note has the "misc" error code instead of "attr-defined".

Tried on current master with Python 3.11.