add test

Zend/tests/bug38461.phpt

@@ -0,0 +1,25 @@
+--TEST--
+Bug #38461 (setting private attribute with __set() produces segfault)
+--FILE--
+<?php
+
+class Operation
+{
+    function __set( $var, $value )
+    {
+        $this->$var = $value;
+    }
+}
+
+class ExtOperation extends Operation
+{
+    private $x;
+}
+
+$op = new ExtOperation;
+$op->x = 'test';
+
+echo "Done\n";
+?>
+--EXPECT--	
+Done