Speed up test case

This test case did 100,000 includes of a non existing file to show the
memory leak; this is not necessary, because after the first failing
include, memory is not supposed to increase for further includes.

Closes GH-7088.

Author: cmb69

Zend/tests/bug79514.phpt

@@ -2,12 +2,13 @@
 Bug #79514 (Memory leaks while including unexistent file)
 --FILE--
 <?php
-$mem1 = memory_get_usage(true);
-for ($i = 0; $i < 100000; $i++) {
-    @include __DIR__ . '/bug79514.doesnotexist';
-}
-$mem2 = memory_get_usage(true);
-var_dump($mem2 - $mem1 < 100000);
+$filename = __DIR__ . '/bug79514.doesnotexist';
+@include $filename;
+// Further include should not increase memory usage.
+$mem1 = memory_get_usage();
+@include $filename;
+$mem2 = memory_get_usage();
+var_dump($mem1 == $mem2);
 ?>
 --EXPECT--
 bool(true)