### 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The description of `Control._has_point(position)`-virtual function is outdated likely due to #66688.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.stored_layout_mode != LayoutMode::LAYOUT_MODE_UNCONTROLLED && data.stored_layout_mode != LayoutMode::LAYOUT_MODE_ANCHORS) {
		return LayoutPreset::PRESET_TOP_LEFT;
	}
	
	if (data.stored_use_custom_anchors) {
		return -1;
	}
	
	float left = get_anchor(SIDE_LEFT);
	float right = get_anchor(SIDE_RIGHT);
	float top = get_anchor(SIDE_TOP);
	float bottom = get_anchor(SIDE_BOTTOM);
	if (left == ANCHOR_BEGIN && right == ANCHOR_BEGIN && top == ANCHOR_BEGIN && bottom == ANCHOR_BEGIN) {
		return (int)LayoutPreset::PRESET_TOP_LEFT;
	}
	if (left == ANCHOR_END && right == ANCHOR_END && top == ANCHOR_BEGIN && bottom == ANCHOR_BEGIN) {
		return (int)LayoutPreset::PRESET_TOP_RIGHT;