Fix SQL queries numbering in test failure output

For example if the DebugStack SQL logger contains 3 queries, then we want an output like this:
```
3. <query 3>
2. <query 2>
1. <query 1>
```
not like that:
```
4. <query 3>
3. <query 2>
2. <query 1>
```

tests/Doctrine/Tests/DbalFunctionalTestCase.php

@@ -59,7 +59,7 @@ class DbalFunctionalTestCase extends DbalTestCase
                         return var_export($p, true);
                     }
                 }, $query['params'] ?: array());
-                $queries .= ($i+1).". SQL: '".$query['sql']."' Params: ".implode(", ", $params).PHP_EOL;
+                $queries .= $i.". SQL: '".$query['sql']."' Params: ".implode(", ", $params).PHP_EOL;
                 $i--;
             }