Fix bug #81510

Make the used arrays larger, because the previous sizes were not
slow enough on some hardware.

Author: nikic

Zend/tests/bug74093.phpt

@@ -12,8 +12,8 @@ max_execution_time=1
 hard_timeout=1
 --FILE--
 <?php
-$a1 = range(1, 1000000);
-$a2 = range(100000, 1999999);
+$a1 = range(1, 2000000);
+$a2 = range(100000, 2999999);
 array_intersect($a1, $a2);
 ?>
 --EXPECTF--