### 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
ADD_SIGNAL(MethodInfo("delete_nodes_request", PropertyInfo(Variant::ARRAY, "nodes", PROPERTY_HINT_ARRAY_TYPE, "StringName")));
	ADD_SIGNAL(MethodInfo("begin_node_move"));
	ADD_SIGNAL(MethodInfo("end_node_move"));
	ADD_SIGNAL(MethodInfo("scroll_offset_changed", PropertyInfo(Variant::VECTOR2, "offset")));
	ADD_SIGNAL(MethodInfo("connection_drag_started", PropertyInfo(Variant::STRING_NAME, "from_node"), PropertyInfo(Variant::INT, "from_port"), PropertyInfo(Variant::BOOL, "is_output")));
	ADD_SIGNAL(MethodInfo("connection_drag_ended"));
	BIND_ENUM_CONSTANT(SCROLL_ZOOMS);
	BIND_ENUM_CONSTANT(SCROLL_PANS);
}
GraphEdit::GraphEdit() {
	set_focus_mode(FOCUS_ALL);
	
	
	
	zoom_min = (1 / Math::pow(zoom_step, 8));
	
	zoom_max = (1 * Math::pow(zoom_step, 4));
	panner.instantiate();
	panner->set_callbacks(callable_mp(this, &GraphEdit::_scroll_callback), callable_mp(this, &GraphEdit::_pan_callback), callable_mp(this, &GraphEdit::_zoom_callback));
	top_layer = memnew(GraphEditFilter(this));
	add_child(top_layer, false, INTERNAL_MODE_BACK);
	top_layer->set_mouse_filter(MOUSE_FILTER_PASS);
	top_layer->set_anchors_and_offsets_preset(Control::PRESET_FULL_RECT);
	top_layer->connect("draw", callable_mp(this, &GraphEdit::_top_layer_draw));
	top_layer->connect("gui_input", callable_mp(this, &GraphEdit::_top_layer_input));
	top_layer->connect("focus_exited", callable_mp(panner.ptr(), &ViewPanner::release_pan_key));
	connections_layer = memnew(Control);
	add_child(connections_layer, false, INTERNAL_MODE_FRONT);
	connections_layer->connect("draw", callable_mp(this, &GraphEdit::_connections_layer_draw));
	connections_layer->set_name("CLAYER");