### 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. 
Vector<int> data;
	data.resize(pattern.size() * 3);
	int *w = data.ptrw();
	
	int idx = 0;
	for (const KeyValue<Vector2i, TileMapCell> &E : pattern) {
		uint8_t *ptr = (uint8_t *)&w[idx];
		encode_uint16((int16_t)(E.key.x), &ptr[0]);
		encode_uint16((int16_t)(E.key.y), &ptr[2]);
		encode_uint16(E.value.source_id, &ptr[4]);
		encode_uint16(E.value.coord_x, &ptr[6]);
		encode_uint16(E.value.coord_y, &ptr[8]);
		encode_uint16(E.value.alternative_tile, &ptr[10]);
		idx += 3;
	}
	return data;
}
void TileMapPattern::set_cell(const Vector2i &p_coords, int p_source_id, const Vector2i p_atlas_coords, int p_alternative_tile) {