atoum's icon is not displayed if the class is present twice

[agallou]

Example :

mkdir test_doublon
git clone https://github.com/FriendsOfPHP/pickle.git v1
git clone https://github.com/FriendsOfPHP/pickle.git v2

Open test_doublon on PHPStorm.
The classes exist twice, and the icon is not displayed. A list should be displayed.