filter out invalid language values

Author: xabbuh

ChoiceList/Loader/IntlCallbackChoiceLoader.php

@@ -30,11 +30,6 @@ public function loadChoicesForValues(array $values, $value = null)
             return array();
         }
 
-        // If no callable is set, values are the same as choices
-        if (null === $value) {
-            return $values;
-        }
-
         return $this->loadChoiceList($value)->getChoicesForValues($values);
     }
 

Tests/ChoiceList/Loader/IntlCallbackChoiceLoaderTest.php

@@ -84,6 +84,11 @@ public function testLoadChoicesForValuesLoadsChoiceListOnFirstCall()
         );
     }
 
+    public function testLoadChoicesForValuesDropsNonExistentChoices()
+    {
+        $this->assertSame(array(), self::$loader->loadChoicesForValues(array('foo')));
+    }
+
     public function testLoadValuesForChoicesLoadsChoiceListOnFirstCall()
     {
         $this->assertSame(