### 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
if (!arg) {
			return false;
		}
		if (is_const_decl && arg->type == Node::NODE_TYPE_VARIABLE) {
			const VariableNode *var = static_cast<const VariableNode *>(arg);
			if (!var->is_const) {
				_set_error(RTR("Expected constant expression."));
				return false;
			}
		}
		p_func->arguments.push_back(arg);
		tk = _get_token();
		if (tk.type == TK_PARENTHESIS_CLOSE) {
			return true;
		} else if (tk.type != TK_COMMA) {
			
			_set_error(RTR("Expected ',' or ')' after argument."));
			return false;
		}
	}
	return true;
}
bool ShaderLanguage::is_token_operator(TokenType p_type) {
	return (p_type == TK_OP_EQUAL ||
			p_type == TK_OP_NOT_EQUAL ||
			p_type == TK_OP_LESS ||
			p_type == TK_OP_LESS_EQUAL ||
			p_type == TK_OP_GREATER ||
			p_type == TK_OP_GREATER_EQUAL ||
			p_type == TK_OP_AND ||