{"ast_node_type":"other","tokens":[{"end":72,"kind":"keyword","start":0,"text":"this.psess.gated_spans.gate(sym::super_let,"}]}
                this.psess.gated_spans.gate(sym::super_let, super_span);
                this.expect_keyword(exp!(Let))?;
                let local = this.parse_local(Some(super_span), attrs)?;