### Godot version

v4.0.beta12.mono.official

### System information

Linux 6.1.6-arch1-1

### Issue description

When creating TileSets from code, the TileSet's `add_source(source: TileSetSource, atlas_source_id_override: int = -1)` method is supposed to accept gdscript int (which is a signed 64-bit int), however feeding it with integers above C++ signed int (>2147483647) will result in a failure - in fact the actual return int (which is supposed to be the source_id override) is equal to 0 and not -1 as method description implies should be the case when the source could not be added. 

PS. Why do I need such huge numbers for tileset sources? I'm adding tilesets from a set of config text files and I'm hashing some parameters from it (via String `hash()` method which returns a 32-bit int) to use as a source_id for the tile set source. I will workaround that one way or another, of course, it's only marginally annoying :) 




### Steps to reproduce

```
var tileset : TileSet = TileSet.new()
var tileset_source : TileSetAtlasSource = TileSetAtlasSource.new()
	
var result : int 
	
result = tileset.add_source(tileset_source, 2147483647)
print("Adding source ID 2147483647 (int) -> ", result) # OK for signed int
	
result = tileset.add_source(tileset_source, 2147483648)
print("Adding source ID 2147483648 (signed int +1) -> ", result) # NOK 
```

![image](https://user-images.githubusercontent.com/16452779/212549500-f5fbdf2b-1643-4874-ae49-19908cab55f4.png)


### Minimal reproduction project

N/A
Simple code to reproduce as depicted above. 
Array output;
	for (const KeyValue<Array, Array> &E : coords_level_proxies) {
		Array proxy;
		proxy.append_array(E.key);
		proxy.append_array(E.value);
		output.push_back(proxy);
	}
	return output;
}
Array TileSet::get_alternative_level_tile_proxies() const {
	Array output;
	for (const KeyValue<Array, Array> &E : alternative_level_proxies) {
		Array proxy;
		proxy.append_array(E.key);
		proxy.append_array(E.value);
		output.push_back(proxy);
	}
	return output;
}
Array TileSet::map_tile_proxy(int p_source_from, Vector2i p_coords_from, int p_alternative_from) const {
	Array from;
	from.push_back(p_source_from);
	from.push_back(p_coords_from);
	from.push_back(p_alternative_from);
	
	if (has_source(p_source_from)) {
		Ref<TileSetSource> source = get_source(p_source_from);