Stack overflow with `__getattr__`

[correctmost]

Describe the Bug

Pyrefly crashes when checking this fuzzed code:

from collections.abc import Awaitable

class C:
    def __getattr__(self: Awaitable):
        pass

C().a

thread '<unknown>' (149109) has overflowed its stack
fatal runtime error: stack overflow, aborting

Version info

Reproducible with 1.3.0-dev.2 and commit 19d136c

Sandbox Link

https://pyrefly.org/sandbox/?project=v2.w1tk4ihFHEGxCCo8EHnKGSU3paeWJJaUFEEzlBVCA3LyggR_TJ6zhqZeImZgKisEQAQUoO4CugYYC-mlwMIK6CC9mDxlYDmVqpBRUlJQbKWvD9OeX5Sun5qnn5KfXKyPokNfAZRuEssSM8FFIKpxCvngyC8GGktJLKpDIlEdXxyqg6IQqAJvtAAA

(Only applicable for extension issues) IDE Information

No response

[kavix]

#claim

[github-actions]

@kavix you've claimed this issue — it's now assigned to you. Thanks for picking it up! 🎉