gtk/gtk_since_3_18.go
func (v *Overlay) ReorderOverlay(child IWidget, position int) {
	C.gtk_overlay_reorder_overlay(v.native(), child.toWidget(), C.gint(position))
}
func (v *Overlay) ReorderOverlay(child IWidget, position int) {
	C.gtk_overlay_reorder_overlay(v.native(), child.toWidget(), C.gint(position))
}
// ReorderOverlay() is a wrapper around gtk_overlay_reorder_overlay().