Use anonymous instance arguments in a different way

jedi/evaluate/context/function.py

@@ -94,6 +94,9 @@ class AbstractFunction(TreeContext):
             else:
                 return function_execution.get_return_values()
 
+    def py__name__(self):
+        return self.name.string_name
+
 
 class FunctionContext(use_metaclass(CachedMetaClass, AbstractFunction)):
     """