Description:
------------
Static properties with default values do not appear in the result of ReflectionClass::getDefaultProperties().

Reproduce code:
---------------
<?php
class Foo
{
    protected static $fooStatic = 'foo';
    protected $foo = 'foo';
}

$class = new ReflectionClass('Foo');

print_r($class->getDefaultProperties());

Expected result:
----------------
Array
(
    [fooStatic] => foo
    [foo] => foo
)

Actual result:
--------------
Array
(
    [foo] => foo
)