Fixed the import fixer priorities

Author: GrahamCampbell

Symfony/CS/Fixer/Contrib/OrderedUseFixer.php

@@ -73,8 +73,8 @@ public function getDescription()
      */
     public function getPriority()
     {
-        // should be run after the MultipleUseFixer
-        return -10;
+        // should be run after the MultipleUseFixer and RemoveLeadingSlashUseFixer
+        return -30;
     }
 
     /**

Symfony/CS/Tests/FixerTest.php

@@ -171,6 +171,7 @@ public function getFixersPriorityCases()
             array($fixers['unused_use'], $fixers['extra_empty_lines']),
             array($fixers['multiple_use'], $fixers['unused_use']),
             array($fixers['multiple_use'], $fixers['ordered_use']),
+            array($fixers['remove_leading_slash_use'], $fixers['ordered_use']),
             array($fixers['remove_lines_between_uses'], $fixers['ordered_use']),
             array($fixers['unused_use'], $fixers['remove_leading_slash_use']),
             array($fixers['multiple_use'], $fixers['remove_leading_slash_use']),