### 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The description of `Control._has_point(position)`-virtual function is outdated likely due to #66688.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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if (data.theme_type_variation == p_theme_type) {
		return;
	}
	data.theme_type_variation = p_theme_type;
	if (is_inside_tree()) {
		notification(NOTIFICATION_THEME_CHANGED);
	}
}
StringName Control::get_theme_type_variation() const {
	return data.theme_type_variation;
}
Ref<Texture2D> Control::get_theme_icon(const StringName &p_name, const StringName &p_theme_type) const {
	if (p_theme_type == StringName() || p_theme_type == get_class_name() || p_theme_type == data.theme_type_variation) {
		const Ref<Texture2D> *tex = data.theme_icon_override.getptr(p_name);
		if (tex) {
			return *tex;
		}
	}
	if (data.theme_icon_cache.has(p_theme_type) && data.theme_icon_cache[p_theme_type].has(p_name)) {
		return data.theme_icon_cache[p_theme_type][p_name];
	}
	List<StringName> theme_types;
	data.theme_owner->get_theme_type_dependencies(this, p_theme_type, &theme_types);
	Ref<Texture2D> icon = data.theme_owner->get_theme_item_in_types(Theme::DATA_TYPE_ICON, p_name, theme_types);
	data.theme_icon_cache[p_theme_type][p_name] = icon;
	return icon;
}
Ref<StyleBox> Control::get_theme_stylebox(const StringName &p_name, const StringName &p_theme_type) const {