{"ast_node_type":"other","tokens":[{"end":70,"kind":"keyword","start":0,"text":"///"}]}
    /// are different places in memory and as such need different IDs.
    /// their data will be deduplicated through `Allocation` interning -- but they
    pub fn reserve_and_set_memory_alloc(self, mem: ConstAllocation<'tcx>) -> AllocId {