func readonlystaticname(t *types.Type) *ir.Name {
	n := staticinit.StaticName(t)
	n.MarkReadonly()
	n.Linksym().Set(obj.AttrContentAddressable, true)
	n.Linksym().Set(obj.AttrLocal, true)
	return n
}

func isSimpleName(nn ir.Node) bool {
	if nn.Op() != ir.ONAME || ir.IsBlank(nn) {
		return false
	}
	n := nn.(*ir.Name)
	return n.OnStack()
}