tc078.hs:7: Warning:
    No explicit method nor default method for `=='
    in an instance declaration for `Eq'

ghc: module version changed to 1; reason: no old .hi file
_interface_ ShouldFail 1
_instance_modules_
IO PrelAddr PrelArr PrelBounded PrelCCall PrelForeign PrelNum
_usages_
PrelBase 1 :: $d12 1 $d13 1 $d2 1 $d26 1 $d28 1 $d29 1 $d31 1 $d33 1 $d37 1 $d38 1 $d39 1 $d41 1 $d6 1 $d7 1 $m/= 1 $m< 1 $m<= 1 $m> 1 $m>= 1 $mcompare 1 $mmax 1 $mmin 1 Eq 1 Eval 1 Ord 1 Ordering 1;
PrelNum 1 :: $d17 1 $d18 1;
_exports_
ShouldFail Bar(MkBar);
_instances_
instance _forall_ [a] {PrelBase.Ord a} => {PrelBase.Ord (Bar a)} = $d1;
instance _forall_ [a] {PrelBase.Eq a} => {PrelBase.Eq (Bar a)} = $d2;
instance _forall_ [a] => {PrelBase.Eval (Bar a)} = $d3;
_declarations_
1 $d1 _:_ _forall_ [a] {PrelBase.Ord a, PrelBase.Eq (Bar a)} => {PrelBase.Ord (Bar a)} ;;
1 $d2 _:_ _forall_ [a] {PrelBase.Eq a} => {PrelBase.Eq (Bar a)} ;;
1 $d3 _:_ _forall_ [a] => {PrelBase.Eval (Bar a)} ;;
1 data Bar a = MkBar PrelBase.Int a ;