### 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
}
		msc.final_size = msc.min_size;
		min_size_cache[c] = msc;
		children_count++;
	}
	if (children_count == 0) {
		return;
	}
	int stretch_max = new_size.height - (children_count - 1) * sep;
	int stretch_diff = stretch_max - stretch_min;
	if (stretch_diff < 0) {
		
		stretch_diff = 0;
	}
	stretch_avail += stretch_diff - sb->get_margin(SIDE_BOTTOM) - sb->get_margin(SIDE_TOP); 
	/** Second, pass successively to discard elements that can't be stretched, this will run while stretchable
		elements exist */
	while (stretch_ratio_total > 0) { 
		bool refit_successful = true; 
		for (int i = 0; i < get_child_count(); i++) {
			Control *c = Object::cast_to<Control>(get_child(i));
			if (!c || !c->is_visible_in_tree()) {
				continue;
			}
			if (c->is_set_as_top_level()) {
				continue;
			}
			ERR_FAIL_COND(!min_size_cache.has(c));
			_MinSizeCache &msc = min_size_cache[c];
			if (msc.will_stretch) {