### Describe the Bug Pyrefly crashes when checking this fuzzed code: ```python from collections.abc import Callable def fn[T](c: Callable[[T], None]) -> T: pass class C: @fn def __new__(cls): pass C() ``` ``` thread '<unknown>' (238807) has overflowed its stack fatal runtime error: stack overflow, aborting ``` ### Version info Tested with commit c63e4acc ### Sandbox Link https://pyrefly.org/sandbox/?project=v2.w1tkEihF4Ak2LzokViPZCi4RDeQDy0RgvMeCU0AISojD8qEzVNQhDSnzABNBajkwJybnFCOnRZhOZ1AKwAx5ZYUAiIAC1BNApwOjLL0UWLIBXa8Xk6cMLNRSFTJKSgqKrfT1Ydrzi9L1U_P0U_KTi_VRdOgrgBJZYlliJthDqMYp5INTSjHQWEqiXB0S4-r4IlwdFN9AFXjjEAA ### (Only applicable for extension issues) IDE Information _No response_
Describe the Bug
Pyrefly crashes when checking this fuzzed code:
Version info
Tested with commit c63e4ac
Sandbox Link
https://pyrefly.org/sandbox/?project=v2.w1tkEihF4Ak2LzokViPZCi4RDeQDy0RgvMeCU0AISojD8qEzVNQhDSnzABNBajkwJybnFCOnRZhOZ1AKwAx5ZYUAiIAC1BNApwOjLL0UWLIBXa8Xk6cMLNRSFTJKSgqKrfT1Ydrzi9L1U_P0U_KTi_VRdOgrgBJZYlliJthDqMYp5INTSjHQWEqiXB0S4-r4IlwdFN9AFXjjEAA
(Only applicable for extension issues) IDE Information
No response