syntax_data: {"ast_node_type":"other","tokens":[{"end":81,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:         /// we don't have a span to point at, so we'll just add them as a `note`.
context_before:         /// The type has no `PartialEq` implementation, neither manual or derived, but
context_after:         without: FxHashSet<Ty<'tcx>>,