{"ast_node_type":"other","tokens":[{"end":58,"kind":"keyword","start":0,"text":"if"}]}
            if tcx.generics_of(adt_def.did()).is_empty() {
            let args_span = args.span_ext.with_lo(args.span_ext.lo() - BytePos(2));
                // FIXME(estebank): we could also verify that the arguments being