Add commented correct future test lines

runtime/src/bank.rs

@@ -1366,9 +1366,15 @@ mod tests {
         // If multiple transactions attempt to deposit into the same account, only the first will
         // succeed, even though such atomic adds are safe. A System Transfer `To` account should be
         // given credit-only handling
+
         assert_eq!(results[0], Ok(()));
         assert_eq!(results[1], Err(TransactionError::AccountInUse));
         assert_eq!(results[2], Err(TransactionError::AccountInUse));
+
+        // After credit-only account handling is implemented, the following checks should pass instead:
+        // assert_eq!(results[0], Ok(()));
+        // assert_eq!(results[1], Ok(()));
+        // assert_eq!(results[2], Ok(()));
     }
 
     #[test]