Goto on a function/attribute in a class now goes to the definition in its super class, fixes #1175

test/completion/inheritance.py

@@ -0,0 +1,27 @@
+
+class Super(object):
+    attribute = 3
+
+    def func(self):
+        return 1
+
+    class Inner():
+        pass
+
+
+class Sub(Super):
+    #? 13 Sub.attribute
+    def attribute(self):
+        pass
+
+    #! 8 ['attribute = 3']
+    def attribute(self):
+        pass
+
+    #! 4 ['def func']
+    func = 3
+    #! 12 ['def func']
+    class func(): ...
+
+    #! 8 ['class Inner']
+    def Inner(self): ...