Typechecked:
{- nonrec -}
H.B.op2 = /\ a.t0 -> \{-classdict-} [d.H.C.t2] [op2.t1] -> op2.t1
sdsel.H.B.H.C = /\ a.t0 -> \{-classdict-} [d.H.C.t2] [op2.t1] -> d.H.C.t2
{- nonrec -}
defm.H.B.op2 =
    /\ a.t3 ->
	\{-dict-} d.H.B.t4 ->
	    (error (a.t3 -> a.t3 -> a.t3))
		"No default method for \"H.B.defm.H.B.op2\"\n"
{- nonrec -}
H.C.op1 = /\ a.t5 -> \{-classdict-} [] [op1.t6] -> op1.t6
{- nonrec -}
defm.H.C.op1 =
    /\ a.t7 ->
	\{-dict-} d.H.C.t8 ->
	    (error (a.t7 -> a.t7))
		"No default method for \"H.C.defm.H.C.op1\"\n"