{"ast_node_type":"variable","tokens":[{"end":96,"kind":"keyword","start":0,"text":"let"}]}
        let FnAbiGcc { return_type, arguments_type, is_c_variadic, .. } = fn_abi.gcc_type(self);
        // FIXME(antoyo): Should we do something with `FnAbiGcc::fn_attributes`?
        self.context.new_function_pointer_type(None, return_type, &arguments_type, is_c_variadic)