eqHsBang (HsUnpack (Just c1)) (HsUnpack (Just c2)) = eqType (coercionType c1) (coercionType c2)
eqHsBang (HsUnpack (Just c1)) (HsUnpack (Just c2)) = eqType (coercionType c1) (coercionType c2)
eqHsBang (HsUnpack (Just c1)) (HsUnpack (Just c2)) = eqType (coercionType c1) (coercionType c2)