ghc: module version changed to 1; reason: no old .hi file
_exports_
-ShouldSucceed B(:B :B op2) C(:C :C op1);
+ShouldSucceed B{:B :B op2} C{:C :C op1};
_declarations_
-1 class {C a} => B a where {op2 :: a -> a -> a} ;
-1 class C a where {op1 :: a -> a} ;
+1 class {C $r3x} => B $r3x where {op2 :: $r3x -> $r3x -> $r3x} ;
+1 class C $r3A where {op1 :: $r3A -> $r3A} ;