{"ast_node_type":"variable","tokens":[{"end":80,"kind":"keyword","start":0,"text":"let"}]}
            let ln = entry_ln.unwrap_or_else(|| self.live_node(hir_id, pat_sp));
        pat.each_binding(|_, hir_id, pat_sp, ident| {
            let var = self.variable(hir_id, ident.span);