Wrong type when using \PDO::FETCH_OBJ (on iteration)

[AllenJB]

With reference to test

phpstan-dba/tests/default/data/pdo-fetch-types.php

Line 33 in f48fc62

$stmt = $pdo->query('SELECT email, adaid FROM ada', PDO::FETCH_OBJ);

The returned type should be \stdClass, not array<int, \stdClass>