Description:
------------
PHP v5.5.10

Namespaces have an unexpected behaviour depending on the script loading order.

Directory Structure:
Sample
|_ classA.php
|_ classB.php
|_ Subnamespace
  |_ classA.php


Test 1:
Output:
Fatal error:  Cannot use Sample\Subnamespace\classA as classA because the name is already in use in Sample/classB.php on line 3


Test 2 (changed script oder):
Output:
Sample\classB
Sample\Subnamespace\classA
Sample\classA
Sample\classB
Sample\Subnamespace\classA


Test script:
---------------
Sample\classA.php:
<?php
namespace Sample;
class classA {}

Sample\classB.php:
<?php
namespace Sample;
use Sample\Subnamespace\classA;
class classB {
    public $classA;
    public function __construct() {
        $this->classA = new classA();
    }
}

Sample\Subnamespace\classA.php:
<?php
namespace Sample;
class classA {}


Test 1:
$a = new Sample\classA();
echo get_class($a)."\n";
$b = new Sample\classB();
echo get_class($b)."\n";
echo get_class($b->classA)."\n";


Test 2:
$b = new Sample\classB();
echo get_class($b)."\n";
echo get_class($b->classA)."\n";
$a = new Sample\classA();
echo get_class($a)."\n";
$b = new Sample\classB();
echo get_class($b)."\n";



Expected result:
----------------
Both (Test 1 & 2) should have the same output.