### 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)

for (int i = 0; i < p_dict.size(); i++) {
		Char16String word = p_dict[i].utf16();
		int32_t len = uspoof_getSkeleton(sc, 0, word.get_data(), -1, NULL, 0, &status);
		skeletons.write[i] = (UChar *)memalloc(++len * sizeof(UChar));
		status = U_ZERO_ERROR;
		uspoof_getSkeleton(sc, 0, word.get_data(), -1, skeletons.write[i], len, &status);
	}
	int32_t len = uspoof_getSkeleton(sc, 0, utf16.get_data(), -1, NULL, 0, &status);
	UChar *skel = (UChar *)memalloc(++len * sizeof(UChar));
	status = U_ZERO_ERROR;
	uspoof_getSkeleton(sc, 0, utf16.get_data(), -1, skel, len, &status);
	for (int i = 0; i < skeletons.size(); i++) {
		if (u_strcmp(skel, skeletons[i]
			match_index = i;
			
		}
	}
	memfree(skel);
	for (int i = 0; i < skeletons.size(); i++) {
		memfree(skeletons.write[i]);
	}
	uspoof_close(sc);
	ERR_FAIL_COND_V_MSG(U_FAILURE(status), -1, u_errorName(status));
	return match_index;
}
bool TextServerAdvanced::_spoof_check(const String &p_string) const {
	UErrorCode status = U_ZERO_ERROR;
	Char16String utf16 = p_string.utf16();
	USet *allowed = uset_openEmpty();
	uset_addAll(allowed, uspoof_getRecommendedSet(&status));