{"ast_node_type":"function","tokens":[{"end":89,"kind":"keyword","start":0,"text":"fn"}]}
    fn parse_pat_range_to(&mut self, mut re: Spanned<RangeEnd>) -> PResult<'a, PatKind> {
    /// expression syntax `...expr` for splatting in expressions.
        let end = self.parse_pat_range_end()?;