### 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
Ref<Texture2D> resizer = get_theme_icon(SNAME("resizer"));
			int close_offset = get_theme_constant(SNAME("close_offset"));
			int close_h_offset = get_theme_constant(SNAME("close_h_offset"));
			Color close_color = get_theme_color(SNAME("close_color"));
			Color resizer_color = get_theme_color(SNAME("resizer_color"));
			int title_offset = get_theme_constant(SNAME("title_offset"));
			int title_h_offset = get_theme_constant(SNAME("title_h_offset"));
			Color title_color = get_theme_color(SNAME("title_color"));
			Point2i icofs = -port->get_size() * 0.5;
			int edgeofs = get_theme_constant(SNAME("port_offset"));
			icofs.y += sb->get_margin(SIDE_TOP);
			draw_style_box(sb, Rect2(Point2(), get_size()));
			switch (overlay) {
				case OVERLAY_DISABLED: {
				} break;
				case OVERLAY_BREAKPOINT: {
					draw_style_box(get_theme_stylebox(SNAME("breakpoint")), Rect2(Point2(), get_size()));
				} break;
				case OVERLAY_POSITION: {
					draw_style_box(get_theme_stylebox(SNAME("position")), Rect2(Point2(), get_size()));
				} break;
			}
			int w = get_size().width - sb->get_minimum_size().x;
			title_buf->draw(get_canvas_item(), Point2(sb->get_margin(SIDE_LEFT) + title_h_offset, -title_buf->get_size().y + title_offset), title_color);
			if (show_close) {
				Vector2 cpos = Point2(w + sb->get_margin(SIDE_LEFT) + close_h_offset - close->get_width(), -close->get_height() + close_offset);
				draw_texture(close, cpos, close_color);
				close_rect.position = cpos;
				close_rect.size = close->get_size();
			} else {