{"ast_node_type":"function","tokens":[{"end":91,"kind":"keyword","start":0,"text":"fn"}]}
    fn restrict_assoc_type_in_where_clause(&self, span: Span, err: &mut Diag<'_>) -> bool {
    /// Given `where <T as Bar>::Baz: String`, suggest `where T: Bar<Baz = String>`.
        // Detect that we are actually in a `where` predicate.