Problems using reexported values

[msullivan]

With the following test:

[case testReexport]
import a
def f(x: int) -> int:
    return a.g(x)

[file a.py]
from b import g

[file b.py]
def g(x: int) -> int:
    return x + 1

we fail to compile during C compilation with the failure:

/tmp/mypy-test-_hn916r6/tmp/native.c: In function ‘CPyDef_f’:
/tmp/mypy-test-_hn916r6/tmp/native.c:78:16: error: ‘CPyStatic_b_module’ undeclared (first use in this function); did you mean ‘CPyStatic_a_module’?

The problem here is that the name of the def a.g is resolved to is b.g, and b isn't imported.

It is easy to hack around, though.