syntax_data: {"ast_node_type":"other","tokens":[{"end":71,"kind":"keyword","start":0,"text":"///"}]}
source_snippet: /// safely used as a key in the maps of a TypeckResults. For that to be
context_before: /// Validate that the given HirId (respectively its `local_id` part) can be
context_after: /// the case, the HirId must have the same `owner` as all the other IDs in