### Godot version

4.0 beta 10

### System information

Windows 10

### Issue description

Godot crashes when i accidently name 2 items in an enum the same

EDIT:
The editor freeze for some seconds, then both editor- and console-window dissapear

### Steps to reproduce

Write

```gdscript
enum {
    A,
}
```

and then add a second line with another A:

```gdscript
enum {
    A,
    A # <- crash
}
```

Does not always immediatly happen if i copy&paste items.
Does not happen when i change the script in another editor and open the script in Godot.

### Minimal reproduction project

[enum.zip](https://github.com/godotengine/godot/files/10313759/enum.zip)

Error err = resolve_class_inheritance(p_class);
	if (err) {
		return err;
	}
	if (p_recursive) {
		for (int i = 0; i < p_class->members.size(); i++) {
			if (p_class->members[i].type == GDScriptParser::ClassNode::Member::CLASS) {
				err = resolve_class_inheritance(p_class->members[i].m_class, true);
				if (err) {
					return err;
				}
			}
		}
	}
	return OK;
}
GDScriptParser::DataType GDScriptAnalyzer::resolve_datatype(GDScriptParser::TypeNode *p_type) {