builtin_methods calculation of iterable works now with the mro.

test/completion/comprehensions.py

@@ -132,7 +132,7 @@ list({a - 1: 3 for a in [1]})[0]
 d = {a - 1: b for a, b in {1: 'a', 3: 1.0}.items()}
 #? int()
 list(d)[0]
-#? str()
+#? str() float()
 d.values()[0]
 #? str()
 d[0]