### 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)

String l = p_locale.get_slicec('_', 0);
	if ((l == "ar") || (l == "dv") || (l == "he") || (l == "fa") || (l == "ff") || (l == "ku") || (l == "ur")) {
		return true;
	} else {
		return false;
	}
}
_FORCE_INLINE_ void TextServerAdvanced::_insert_feature(const  &p_name, int32_t p_tag, Variant::Type p_vtype, bool p_hidden) {
	FeatureInfo fi;
	fi.name = p_name;
	fi.vtype = p_vtype;
	fi.hidden = p_hidden;
	feature_sets.insert(p_name, p_tag);
	feature_sets_inv.insert(p_tag, fi);
}
void TextServerAdvanced::_insert_feature_sets() {
	
	
	_insert_feature("access_all_alternates", HB_TAG('a', 'a', 'l', 't'), Variant::Type::INT, false);
	_insert_feature("above_base_forms", HB_TAG('a', 'b', 'v', 'f'), Variant::Type::INT, true);
	_insert_feature("above_base_mark_positioning", HB_TAG('a', 'b', 'v', 'm'), Variant::Type::INT, true);
	_insert_feature("above_base_substitutions", HB_TAG('a', 'b', 'v', 's'), Variant::Type::INT, true);
	_insert_feature("alternative_fractions", HB_TAG('a', 'f', 'r', 'c'), Variant::Type::INT, false);
	_insert_feature("akhands", HB_TAG('a', 'k', 'h', 'n'), Variant::Type::INT, true);
	_insert_feature("below_base_forms", HB_TAG('b', 'l', 'w', 'f'), Variant::Type::INT, true);
	_insert_feature("below_base_mark_positioning", HB_TAG('b', 'l', 'w', 'm'), Variant::Type::INT, true);
	_insert_feature("below_base_substitutions", HB_TAG('b', 'l', 'w', 's'), Variant::Type::INT, true);