### 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
}
					}
					port_info.insert(_connection, ports);
				}
			}
			upper_neighbours.insert(gn->get_name(), s);
		}
	}
	if (!selected_nodes.size()) {
		arranging_graph = false;
		return;
	}
	HashMap<int, Vector<StringName>> layers = _layering(selected_nodes, upper_neighbours);
	_crossing_minimisation(layers, upper_neighbours);
	Dictionary root, align, sink, shift;
	_horizontal_alignment(root, align, layers, upper_neighbours, selected_nodes);
	HashMap<StringName, Vector2> new_positions;
	Vector2 default_position(FLT_MAX, FLT_MAX);
	Dictionary inner_shift;
	HashSet<StringName> block_heads;
	for (const StringName &E : selected_nodes) {
		inner_shift[E] = 0.0f;
		sink[E] = E;
		shift[E] = FLT_MAX;
		new_positions.insert(E, default_position);
		if ((StringName)root[E] == E) {
			block_heads.insert(E);
		}
	}
	_calculate_inner_shifts(inner_shift, root, node_names, align, block_heads, port_info);