Adding a test asset to play around with reflection and internal classes

tests/Doctrine/Tests/Models/Reflection/ArrayObjectExtendingClass.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace Doctrine\Tests\Models\StockExchange;
+
+use ArrayObject;
+
+/**
+ * A test asset extending {@see \ArrayObject}, useful for verifying internal classes issues with reflection
+ */
+class ArrayObjectExtendingClass extends ArrayObject
+{
+    private $privateProperty;
+    protected $protectedProperty;
+    public $publicProperty;
+}