syntax_data: {"ast_node_type":"other","tokens":[{"end":63,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// if the set of names in `self` is a superset of those in
context_before:     /// Returns `true` if `self` can name a name from `other` -- in other words,
context_after:     /// `other` (`self >= other`).