{"ast_node_type":"other","tokens":[{"end":91,"kind":"keyword","start":0,"text":"//"}]}
// 1. if on an `async` or `await` token, highlights all yield points for that async context
//      * additionally, if the identifier is a trait in a where clause, type parameter trait bound or use item, highlights all references to that trait's assoc items in the corresponding scope
// 1. if on a `return` or `fn` keyword, `?` character or `->` return type arrow, highlights all exit points for that context