### Godot version

4.2 (c5da2e54fe50cad34b5f93fa10538978b33af88d)

### System information

Windows 11

### Issue description

Attempting to run a scene with the following script report Identifier not found error:

![image](https://github.com/godotengine/godot/assets/3036176/3a63b930-0588-499d-80a2-4f88f5f07116)

This does not happen on 4.1.1 so this is a regression.

### Steps to reproduce

Create a script derived from Control and try to get access to the mouse_entered signal.

### Minimal reproduction project

[TestBug.zip](https://github.com/godotengine/godot/files/12237764/TestBug.zip)

}
#ifdef DEBUG_ENABLED
	if (EngineDebugger::is_active()) {
		String signature;
		
		if (!p_script->get_script_path().is_empty()) {
			signature += p_script->get_script_path();
		}
		
		if (p_func) {
			signature += "::" + itos(p_func->body->start_line);
		} else {
			signature += "::0";
		}
		
		if (p_class->identifier) {
			signature += "::" + String(p_class->identifier->name) + "." + String(func_name);
		} else {
			signature += "::" + String(func_name);
		}
		if (p_for_lambda) {
			signature += "(lambda)";
		}
		codegen.generator->set_signature(signature);
	}
#endif
	if (p_func) {
		codegen.generator->set_initial_line(p_func->start_line);
	} else {
		codegen.generator->set_initial_line(0);