{"ast_node_type":"function","tokens":[{"end":84,"kind":"keyword","start":0,"text":"///"}]}
    ///  in `fn foo<T>(t: T) where T: Foo,` so we don't suggest two trailing commas.
    /// `Span` where further predicates would be suggested, accounting for trailing commas, like
    pub fn tail_span_for_predicate_suggestion(&self) -> Span {