### Godot version

v4.0.beta16.official [518b9e580]

### System information

-

### Issue description

The description of `Control._has_point(position)`-virtual function is outdated likely due to #66688. 

> Note: If you want to check if a point is inside the control, you can use `get_rect().has_point(point)`.

After #66688, get_rect() returns the Controls rect relative to its parent, while the point is relative to the Control.

Also, the note refers to `point` while it likely should refer to the parameter `position`. That said, in this case, I think the incorrect name is better and the parameter of the function should be changed to`point` to avoid shadowing `Control.position`.

Suggested fixes:
1. Change the note to match the new behavior (`Rect2(Vector2.ZERO, size).has_point(point)` should work; verify) OR introduce `get_local_rect()` that matches the old behavior and recommend using it instead.
2. Change the name of the `position` parameter to `point` in `Control._has_point(position)`

### Steps to reproduce

-

### Minimal reproduction project

-
case NOTIFICATION_READY: {
#ifdef DEBUG_ENABLED
			connect("ready", callable_mp(this, &Control::_clear_size_warning), CONNECT_DEFERRED | CONNECT_ONE_SHOT);
#endif
		} break;
		case NOTIFICATION_ENTER_CANVAS: {
			data.is_rtl_dirty = true;
			CanvasItem *node = this;
			bool has_parent_control = false;
			while (!node->is_set_as_top_level()) {
				CanvasItem *parent = Object::cast_to<CanvasItem>(node->get_parent());
				if (!parent) {
					break;
				}
				Control *parent_control = Object::cast_to<Control>(parent);
				if (parent_control) {
					has_parent_control = true;
					break;
				}
				node = parent;
			}
			if (has_parent_control) {
				
			} else {
				
				Viewport *viewport = get_viewport();
				ERR_FAIL_COND(!viewport);
				data.RI = viewport->_gui_add_root_control(this);
			}
			data.parent_canvas_item = get_parent_item();