tcSplitSigmaTy, tcSplitDFunHead, mkTyVarTys,
SkolemInfo(InstSkol), tcSplitDFunTy, pprClassPred )
import Inst ( tcInstClassOp, newDicts, instToId, showLIE,
tcSplitSigmaTy, tcSplitDFunHead, mkTyVarTys,
SkolemInfo(InstSkol), tcSplitDFunTy, pprClassPred )
import Inst ( tcInstClassOp, newDicts, instToId, showLIE,