{"ast_node_type":"variable","tokens":[{"end":84,"kind":"keyword","start":0,"text":"let"}]}
        let dst = self.context.new_cast(self.location, dst, volatile_void_ptr_type);
        let volatile_void_ptr_type = void_ptr_type.make_volatile();
        // FIXME(antoyo): not sure why, but we have the wrong type here.