add statistics xts

Signed-off-by: Nzhangxingxia <zhangxingxia1@huawei.com>

storage/storagestatisticsjstest/entry/src/main/ets/test/StorageStatistics.test.ets

@@ -129,7 +129,7 @@ export default function storageStatisticsTest() {
           });
           let flag = !results.some(value => {
             return JSON.stringify(value) !== JSON.stringify(results[0]);
-          })
+          });
           expect(results.length == tasks.length).assertTrue();
           expect(flag).assertTrue();
           expect(isNotNull).assertTrue();