Description:
------------
Segfaults happen when you put something into a class property you haven't declared.

Probably a dupe of 40460, 40431; but affecting 5.2.1

Reproduce code:
---------------
<?php
class Example {
    public function segfault() {
        $class = new ReflectionObject($this);
        $properties = $class->getProperties();

        foreach ($properties as $property) {
            //Kaboom!
            if ($property->isStatic()) { continue; }
        }
        return true;
    }

    public function __construct($jr_id = null) {
        $this->d = "";
    }

}
$report = new Example();
$report->segfault();


Expected result:
----------------
No segfault.
Warnings about undeclared stuff.

Actual result:
--------------
Segmentation fault