{"ast_node_type":"other","tokens":[{"end":98,"kind":"keyword","start":0,"text":"if"}]}
                    if is_within_packed(self.tcx, &self.body.local_decls, destination).is_some() {
                    // be passed by a reference to the callee. Consequently they cannot be packed.
                        // This is bad! The callee will expect the memory to be aligned.