Fix usages.

jedi/evaluate/representation.py

@@ -242,6 +242,12 @@ class Instance(use_metaclass(CachedMetaClass, Executed)):
     def names_dicts(self, search_global):
         yield self._self_names_dict()
 
+        for s in self.base.py__mro__(self._evaluator)[1:]:
+            if not isinstance(s, compiled.CompiledObject):
+                # Compiled objects don't have `self.` names.
+                for inst in self._evaluator.execute(s):
+                    yield inst._self_names_dict(add_mro=False)
+
         for names_dict in self.base.names_dicts(search_global=False):
             yield LazyInstanceDict(self._evaluator, self, names_dict)
 

jedi/parser/tree.py

@@ -1260,7 +1260,7 @@ class CompFor(Simple):
             arr.append(name)
         return dct
 
-    def names_dicts(self):
+    def names_dicts(self, search_global):
         yield self.names_dict
 
     def get_defined_names(self):

test/completion/usages.py

@@ -164,7 +164,7 @@ class Super(object):
     def base_method(self):
         #< 13 (0,13), (20,13)
         self.base_var = 1
-        #< 13 (0,13), (24,13), (29,13)
+        #< 13 (0,13),
         self.instance_var = 1
 
     #< 8 (0,8),
@@ -188,12 +188,12 @@ class TestClass(Super):
         TestClass.base_var
 
 
-        #< 13 (5,13), (0,13), (-24,13)
+        #< 13 (5,13), (0,13)
         self.instance_var = 3
 
     #< 9 (0,8), 
     def just_a_method(self):
-        #< (-5,13), (0,13), (-29,13)
+        #< (-5,13), (0,13)
         self.instance_var