//		println(byval)
//		(*&byref)++
//	}(byval, &byref, 42)
func directClosureCall(n *ir.CallExpr) {
	clo := n.Fun.(*ir.ClosureExpr)
	clofn := clo.Func

	if ir.IsTrivialClosure(clo) {
		return // leave for walkClosure to handle
	}

	// We are going to insert captured variables before input args.
	var params []*types.Field
	var decls []*ir.Name
	for _, v := range clofn.ClosureVars {
		if !v.Byval() {

				// But if this is an instantiated function, then
				// the function has already been typechecked. In
				// that case, don't do the test, since it can fail
				// for the closure structs created in
				// walkClosure(), because the instantiated
				// function is compiled as if in the source
				// package of the generic function.
				if !(ir.CurFunc != nil && strings.Contains(ir.CurFunc.Nname.Sym().Name, "[")) {

	case ir.OARRAYLIT, ir.OSLICELIT, ir.OMAPLIT, ir.OSTRUCTLIT, ir.OPTRLIT:
		return walkCompLit(n, init)

	case ir.OSEND:
		n := n.(*ir.SendStmt)
		return walkSend(n, init)

	case ir.OCLOSURE:
		return walkClosure(n.(*ir.ClosureExpr), init)

	case ir.OMETHVALUE:
		return walkMethodValue(n.(*ir.SelectorExpr), init)
	}

	// No return! Each case must return (or panic),
	// to avoid confusion about what gets returned