### 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The description of `Control._has_point(position)`-virtual function is outdated likely due to #66688.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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} else if (p_property.name == "size_flags_horizontal" || p_property.name == "size_flags_vertical") {
			
			Container *parent_container = Object::cast_to<Container>(parent_node);
			Vector<int> size_flags;
			if (p_property.name == "size_flags_horizontal") {
				size_flags = parent_container->get_allowed_size_flags_horizontal();
			} else if (p_property.name == "size_flags_vertical") {
				size_flags = parent_container->get_allowed_size_flags_vertical();
			}
			
			String hint_string;
			if (size_flags.has(SIZE_FILL)) {
				hint_string += "Fill:1";
			}
			if (size_flags.has(SIZE_EXPAND)) {
				if (!hint_string.is_empty()) {
					hint_string += ",";
				}
				hint_string += "Expand:2";
			}
			if (size_flags.has(SIZE_SHRINK_CENTER)) {
				if (!hint_string.is_empty()) {
					hint_string += ",";
				}
				hint_string += "Shrink Center:4";
			}
			if (size_flags.has(SIZE_SHRINK_END)) {
				if (!hint_string.is_empty()) {
					hint_string += ",";
				}