{"ast_node_type":"variable","tokens":[{"end":52,"kind":"keyword","start":0,"text":"let"}]}
        let is_try = self.token.is_keyword(kw::Try);
    pub(super) fn try_macro_suggestion(&mut self) -> PResult<'a, P<Expr>> {
        let is_questionmark = self.look_ahead(1, |t| t == &token::Bang); //check for !