### Godot version

4.0.dev (ba9491f87)

### System information

Windows 11 Chrome 109.0.5414.75 (Official Build), iOS 16.2 Safari

### Issue description

When exporting a simple project for Web with any GDScript like following:
```gdscript
extends Control

```
will print the following error to the console:
```
USER ERROR: U_ILLEGAL_ARGUMENT_ERROR
   at: _is_confusable (modules\text_server_adv\text_server_adv.cpp:6151)
```

![image](https://user-images.githubusercontent.com/173001/214089154-d88f3f44-b670-41ec-9743-30627677968e.png)

For more complex project, following additional errors are showing:
```
USER ERROR: U_FILE_ACCESS_ERROR
   at: _spoof_check (modules\text_server_adv\text_server_adv.cpp:6174)
USER ERROR: U_ILLEGAL_ARGUMENT_ERROR
   at: _is_confusable (modules\text_server_adv\text_server_adv.cpp:6151)
```
When I've inserted `print_line(p_string)` at text_server_adv.cpp line 6172, following logs are collected:
![image](https://user-images.githubusercontent.com/173001/214091164-cb5af630-56d2-446e-b1c4-dc20066565d5.png)

It seems that the identifiers of *.gd files are printed to the console.


### Steps to reproduce

1. Open minimal reproduction project.
2. Exports to Web.
3. Open exported site with Chrome and open developer console.
4. Following error logs will be seen (reproduced): `USER ERROR: U_ILLEGAL_ARGUMENT_ERROR`

### Minimal reproduction project

[text_server_adv_error.zip](https://github.com/godotengine/godot/files/10481582/text_server_adv_error.zip)

}
		}
	}
	return true;
}
TextServerAdvanced::TextServerAdvanced() {
	_insert_num_systems_lang();
	_insert_feature_sets();
	_bmp_create_font_funcs();
}
up() {
	for (const KeyValue<SystemFontKey, SystemFontCache> &E : system_fonts) {
		const Vector<SystemFontCacheRec> &sysf_cache = E.value.var;
		for (const SystemFontCacheRec &F : sysf_cache) {
			_free_rid(F.rid);
		}
	}
	system_fonts.clear();
	system_font_data.clear();
}
TextServerAdvanced::~TextServerAdvanced() {
	_bmp_free_font_funcs();
#ifdef MODULE_FREETYPE_ENABLED
	if (ft_library != nullptr) {
		FT_Done_FreeType(ft_library);
	}
#endif
	u_cleanup();
}