Bug 1626570 - Improve handling of copying arrays in storage/. r=mak

Differential Revision: https://phabricator.services.mozilla.com/D73683

storage/test/gtest/test_asyncStatementExecution_transaction.cpp

@@ -97,8 +97,7 @@ TEST(storage_asyncStatementExecution_transaction, MultipleAsyncReadStatements)
       ToRefPtr(std::move(stmt2)),
   };
 
-  check_transaction(db, nsTArray<RefPtr<mozIStorageBaseStatement>>(stmts),
-                    false);
+  check_transaction(db, stmts.Clone(), false);
 }
 
 /**