### 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)

} 
		case FT_PIXEL_MODE_LCD: {
			color_size = 4;
			w /= 3;
		} 
		case FT_PIXEL_MODE_LCD_V: {
			color_size = 4;
			h /= 3;
		} 
	}
	int mw = w + p_rect_margin * 4;
	int mh = h + p_rect_margin * 4;
	ERR_FAIL_COND_V(mw > 4096, FontGlyph());
	ERR_FAIL_COND_V(mh > 4096, FontGlyph());
	Image::Format require_format = color_size == 4 ? Image::FORMAT_RGBA8 : Image::FORMAT_LA8;
	FontTexturePosition tex_pos = find_texture_pos_for_glyph(p_data, color_size, require_format, mw, mh, false);
	ERR_FAIL_COND_V(tex_pos.index < 0, FontGlyph());
	
	ShelfPackTexture &tex = p_data->textures.write[tex_pos.index];
	{
		uint8_t *wr = tex.imgdata.ptrw();
		for (int i = 0; i < h; i++) {
			for (int j = 0; j < w; j++) {
				int ofs = ((i + tex_pos.y + p_rect_margin * 2) * tex.texture_w + j + tex_pos.x + p_rect_margin * 2) * color_size;
				ERR_FAIL_COND_V(ofs >= tex.imgdata.size(), FontGlyph());
				switch (bitmap.pixel_mode) {
					case FT_PIXEL_MODE_MONO: {
						int byte = i * bitmap.pitch + (j >> 3);
						int bit = 1 << (7 - (j % 8));
						wr[ofs + 0] = 255;