### Godot version

4.0.3

### System information

Win7

### Issue description

![image](https://github.com/godotengine/godot/assets/28286958/abec9d3c-e078-424c-9430-d9fe8897aad6)


### Steps to reproduce

1. Create shader
2. Add uint with hex, e.g. 0xffffu

### Minimal reproduction project

N/A
}
			arg_list += arg_name;
		}
		_set_error(vformat(RTR("Invalid arguments for the built-in function: \"%s(%s)\"."), String(name), arg_list));
		return false;
	}
	
	StringName exclude_function;
	BlockNode *block = p_block;
	while (block) {
		if (block->parent_function) {
			exclude_function = block->parent_function->name;
		}
		block = block->parent_block;
	}
	if (name == exclude_function) {
		_set_error(RTR("Recursion is not allowed."));
		return false;
	}
	int last_arg_count = 0;
	String arg_list = "";
	for (int i = 0; i < shader->functions.size(); i++) {
		if (name != shader->functions[i].name) {
			continue;
		}
		if (!shader->functions[i].callable) {
			_set_error(vformat(RTR("Function '%s' can't be called from source code."), String(name)));
			return false;
		}
		FunctionNode *pfunc = shader->functions[i].function;