### 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
switch (p_what) {
		case NOTIFICATION_ENTER_TREE:
		case NOTIFICATION_THEME_CHANGED: {
			port_hotzone_inner_extent = get_theme_constant("port_hotzone_inner_extent");
			port_hotzone_outer_extent = get_theme_constant("port_hotzone_outer_extent");
			zoom_minus->set_icon(get_theme_icon(SNAME("minus")));
			zoom_reset->set_icon(get_theme_icon(SNAME("reset")));
			zoom_plus->set_icon(get_theme_icon(SNAME("more")));
			snap_button->set_icon(get_theme_icon(SNAME("snap")));
			minimap_button->set_icon(get_theme_icon(SNAME("minimap")));
			layout_button->set_icon(get_theme_icon(SNAME("layout")));
			zoom_label->set_custom_minimum_size(Size2(48, 0) * get_theme_default_base_scale());
		} break;
		case NOTIFICATION_READY: {
			Size2 hmin = h_scroll->get_combined_minimum_size();
			Size2 vmin = v_scroll->get_combined_minimum_size();
			h_scroll->set_anchor_and_offset(SIDE_LEFT, ANCHOR_BEGIN, 0);
			h_scroll->set_anchor_and_offset(SIDE_RIGHT, ANCHOR_END, 0);
			h_scroll->set_anchor_and_offset(SIDE_TOP, ANCHOR_END, -hmin.height);
			h_scroll->set_anchor_and_offset(SIDE_BOTTOM, ANCHOR_END, 0);
			v_scroll->set_anchor_and_offset(SIDE_LEFT, ANCHOR_END, -vmin.width);
			v_scroll->set_anchor_and_offset(SIDE_RIGHT, ANCHOR_END, 0);
			v_scroll->set_anchor_and_offset(SIDE_TOP, ANCHOR_BEGIN, 0);
			v_scroll->set_anchor_and_offset(SIDE_BOTTOM, ANCHOR_END, 0);