if n.Op() == ir.ODYNAMICDOTTYPE2 {
				r.SetOp(ir.ODOTTYPE2)
			}
			r.SetType(n.Type())
			r.SetTypecheck(1)
			return walkExpr(r, init)
		}
	}
	return n
}

// walkIndex walks an OINDEX node.
func walkIndex(n *ir.IndexExpr, init *ir.Nodes) ir.Node {
	n.X = walkExpr(n.X, init)

	// save the original node for bounds checking elision.
	// If it was a ODIV/OMOD walk might rewrite it.
	r := n.Index

	swCDIndex         ID = 674
	swKEIndex         ID = 675
	swTZIndex         ID = 676
	swUGIndex         ID = 677
	syrIndex          ID = 678
	taIndex           ID = 679
	taINIndex         ID = 680
	taLKIndex         ID = 681
	taMYIndex         ID = 682
	taSGIndex         ID = 683
	teIndex           ID = 684
	teINIndex         ID = 685
	teoIndex          ID = 686
	teoKEIndex        ID = 687