Goto Definition does not work with class methods when modules reference each other

[MikhailArkhipov]

Works in a single file, but not cross-files, specifically with circular references. Works if method is not a class method.

module1:

from .module2 import Derived1

class Base(object):
    @classmethod
    def fob_base(cls): 
        pass

class Derived2(Derived1):
    pass

Derived2.fob_base()

module2:

from module1 import *

class Derived1(Base):
    pass