Overloaded functions and aliases not working together

[canepan]

Please provide more information to help us understand the issue:

• Reporting a bug
• failing (mock) code:

class CustomType:
    myattr: str = ''

def _custom_repr(v: CustomType) -> str:
    return v.myattr

@attr.s
class MyClass(object)
    myvar: CustomType = attr.ib(repr=_custom_repr)

• the actual output: error: No overload variant matches argument type "Callable[[Any], str]"
• the behavior/output I expect: mypy should succeed
• mypy 0.720
• mypy flags: --python-version 3.6 --python-executable python3.6
• mypy flags (from config): ignore_missing_imports = True
• If mypy crashed with a traceback, please paste
  the full traceback below.

possibly related to: #6157 , #8092

[AlexWaygood]

I tried running mypy on this snippet locally:

import attr

class CustomType:
    myattr: str = ''

def _custom_repr(v: CustomType) -> str:
    return v.myattr

@attr.s
class MyClass(object):
    myvar: CustomType = attr.ib(repr=_custom_repr)

But I could not reproduce the error with version 0.942 of mypy. So I assume that this issue is now fixed.