cs.Score, cs.ScoreMask = score, tmask
		return
	}

	// Walk through the actual expressions being passed at the call.
	calleeRecvrParms := callee.Type().RecvParams()
	for idx := range call.Args {
		// ignore blanks
		if calleeRecvrParms[idx].Sym == nil ||
			calleeRecvrParms[idx].Sym.IsBlank() {
			continue
		}
		arg := call.Args[idx]
		pflag := calleeProps.ParamFlags[idx]