{"ast_node_type":"other","tokens":[{"end":34,"kind":"keyword","start":0,"text":"Rvalue::Ref(_,"}]}
            Rvalue::Ref(_, p) => {
            Rvalue::Use(it) => Borrowed(self.eval_operand(it, locals)?),
                let (addr, _, metadata) = self.place_addr_and_ty_and_metadata(p, locals)?;