{"ast_node_type":"other","tokens":[{"end":40,"kind":"keyword","start":0,"text":"if"}]}
                if new_name.is_empty() {
                let any_duplicate = self.libs.iter().any(|n| n.name.as_str() == lib.name);
                    self.tcx.dcx().emit_err(errors::EmptyRenamingTarget { lib_name: &lib.name });