{"ast_node_type":"other","tokens":[{"end":60,"kind":"keyword","start":0,"text":"///"}]}
    ///   retags can still occur at `Rvalue::{Ref,AddrOf}`).
    ///   and so we don't document this here. Runtime MIR has most retags explicit (though implicit
    /// - Coroutine bodies: In analysis MIR, locals may actually be behind a pointer that user code