module Main where import Base import Extends -- Previously GHC was giving this false positive: -- -- T10890_1.hs:4:1: Warning: -- The import of ‘Extends’ is redundant -- except perhaps to import instances from ‘Extends’ -- To import instances alone, use: import Extends() data Bar = Bar instance AClass Bar where has = Bar instance BClass Bar where has = Bar main :: IO () main = return ()