### Godot version

4.0.dev (d0398f62f0)

### System information

Windows 10

### Issue description

`GraphNode` class declares members with conflicting names.  
- `selected` property: https://github.com/godotengine/godot/blob/0daa86d70e7338506c37bee6b6e0c4aba7255d68/scene/gui/graph_node.cpp#L1154
- `selected` signal: https://github.com/godotengine/godot/blob/0daa86d70e7338506c37bee6b6e0c4aba7255d68/scene/gui/graph_node.cpp#L1164

As now signals are truely members of the class, this leads to name colliding in several languages.  
- In GDScript, the signal can't be used as it is treated as a property:
![image](https://user-images.githubusercontent.com/48322356/210059248-edbbd142-5d34-41f0-a3f5-08d4f2e02fc3.png)
- In Kotlin, the generated API code cannot compile as signal and property declarations are conflicting:
```
e: ~\git\godot\modules\kotlin_jvm\kt\godot-library\src\main\kotlin\godot\gen\godot\GraphNode.kt: (53, 14): Conflicting declarations: public final val selected: Signal0, public final var selected: Boolean
e: ~\git\godot\modules\kotlin_jvm\kt\godot-library\src\main\kotlin\godot\gen\godot\GraphNode.kt: (182, 14): Conflicting declarations: public final val selected: Signal0, public final var selected: Boolean
```

### Steps to reproduce

Try to use `selected` signal from GDScript.

### Minimal reproduction project

N/A
screen.size += get_size() * 2.0;
	h_scroll->set_min(screen.position.x);
	h_scroll->set_max(screen.position.x + screen.size.x);
	h_scroll->set_page(get_size().x);
	if (h_scroll->get_max() - h_scroll->get_min() <= h_scroll->get_page()) {
		h_scroll->hide();
	} else {
		h_scroll->show();
	}
	v_scroll->set_min(screen.position.y);
	v_scroll->set_max(screen.position.y + screen.size.y);
	v_scroll->set_page(get_size().y);
	if (v_scroll->get_max() - v_scroll->get_min() <= v_scroll->get_page()) {
		v_scroll->hide();
	} else {
		v_scroll->show();
	}
	Size2 hmin = h_scroll->get_combined_minimum_size();
	Size2 vmin = v_scroll->get_combined_minimum_size();
	
	h_scroll->set_anchor_and_offset(SIDE_RIGHT, ANCHOR_END, v_scroll->is_visible() ? -vmin.width : 0);
	v_scroll->set_anchor_and_offset(SIDE_BOTTOM, ANCHOR_END, h_scroll->is_visible() ? -hmin.height : 0);
	set_block_minimum_size_adjust(false);
	if (!awaiting_scroll_offset_update) {
		call_deferred(SNAME("_update_scroll_offset"));
		awaiting_scroll_offset_update = true;
	}
	updating = false;
}
void GraphEdit::_graph_node_raised(Node *p_gn) {