{"ast_node_type":"other","tokens":[{"end":56,"kind":"keyword","start":0,"text":"///"}]}
    /// then the `span` represents the scrutinee's span.
    /// If a `Some(span)` is provided and `origin_expr` holds,
    /// The scrutinee is found in e.g. `match scrutinee { ... }` and `let pat = scrutinee;`.