Description:
------------
It is no longer possible to use a trait, which uses another trait and aliases methods.

This worked in PHP 5.4.10, but changed in either PHP 5.4.11 or PHP 5.4.12.

Test script:
---------------
<?php
trait MyTrait
{
	public function foo() {}
}

trait MyOtherTrait
{
    use MyTrait
    {
        foo as bar;
    }
}

class Importer
{
    use MyOtherTrait;
}
echo 'works' . PHP_EOL;

Expected result:
----------------
works

Actual result:
--------------
Fatal error: Trait method foo has not been applied, because there are collisions with other trait methods on Importer in Example.php on line 18