### 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)

int limit = 0;
			for (int i = 0; i < sd->text.length(); i++) {
				if (is_whitespace(data[i])) {
					int ks = _generate_kashida_justification_opportunies(sd->text, limit, i) + sd->start;
					if (ks != -1) {
						sd->jstops[ks] = true;
					}
					limit = i + 1;
				}
			}
			int ks = _generate_kashida_justification_opportunies(sd->text, limit, sd->text.length()) + sd->start;
			if (ks != -1) {
				sd->jstops[ks] = true;
			}
		} else {
			int limit = 0;
			while (ubrk_next(bi) != UBRK_DONE) {
				if (ubrk_getRuleStatus(bi) != UBRK_WORD_NONE) {
					int i = _convert_pos(sd, ubrk_current(bi));
					sd->jstops[i + sd->start] = false;
					int ks = _generate_kashida_justification_opportunies(sd->text, limit, i);
					if (ks != -1) {
						sd->jstops[ks + sd->start] = true;
					}
					limit = i;
				}
			}
			ubrk_close(bi);
		}