### 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
return snap_button->is_pressed();
}
int GraphEdit::get_snap() const {
	return snap_amount->get_value();
}
void GraphEdit::set_snap(int p_snap) {
	ERR_FAIL_COND(p_snap < 5);
	snap_amount->set_value(p_snap);
	queue_redraw();
}
void GraphEdit::_snap_toggled() {
	queue_redraw();
}
void GraphEdit::_snap_value_changed(double) {
	queue_redraw();
}
void GraphEdit::set_minimap_size(Vector2 p_size) {
	minimap->set_size(p_size);
	Vector2 minimap_size = minimap->get_size(); 
	minimap->set_anchors_preset(Control::PRESET_BOTTOM_RIGHT);
	minimap->set_offset(Side::SIDE_LEFT, -minimap_size.x - MINIMAP_OFFSET);
	minimap->set_offset(Side::SIDE_TOP, -minimap_size.y - MINIMAP_OFFSET);
	minimap->set_offset(Side::SIDE_RIGHT, -MINIMAP_OFFSET);
	minimap->set_offset(Side::SIDE_BOTTOM, -MINIMAP_OFFSET);
	minimap->queue_redraw();
}
Vector2 GraphEdit::get_minimap_size() const {