{"ast_node_type":"other","tokens":[{"end":18,"kind":"keyword","start":0,"text":"_"}]}
            _ => {
            hir::ItemKind::Fn { body: owner_id, .. } => tcx.hir_span(owner_id.hir_id),
                bug!("Drop location span error: need to handle more ItemKind '{:?}'", item.kind);