### Godot version

v4.0.beta16.official [518b9e580]

### System information

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The description of `Control._has_point(position)`-virtual function is outdated likely due to #66688.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

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### Minimal reproduction project

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return get_parent_anchorable_rect().size;
}
Transform2D Control::_get_internal_transform() const {
	Transform2D rot_scale;
	rot_scale.set_rotation_and_scale(data.rotation, data.scale);
	Transform2D offset;
	offset.set_origin(-data.pivot_offset);
	return offset.affine_inverse() * (rot_scale * offset);
}
void Control::_update_canvas_item_transform() {
	Transform2D xform = _get_internal_transform();
	xform[2] += get_position();
	
	if (is_inside_tree() && Math::abs(Math::sin(data.rotation * 4.0f)) < 0.00001f && get_viewport()->is_snap_controls_to_pixels_enabled()) {
		xform[2] = xform[2].round();
	}
	RenderingServer::get_singleton()->canvas_item_set_transform(get_canvas_item(), xform);
}
Transform2D Control::get_transform() const {
	Transform2D xform = _get_internal_transform();
	xform[2] += get_position();
	return xform;
}
void Control::_top_level_changed_on_parent() {
	
	_notification(NOTIFICATION_EXIT_CANVAS);
	_notification(NOTIFICATION_ENTER_CANVAS);
}
void Control::_set_anchor(Side p_side, real_t p_anchor) {