[ClassLoader] added missing deprecation notice.

src/Symfony/Component/ClassLoader/ApcUniversalClassLoader.php

@@ -59,6 +59,8 @@ namespace Symfony\Component\ClassLoader;
  * @author Kris Wallsmith <kris@symfony.com>
  *
  * @api
+ *
+ * @deprecated Deprecated since version 2.4, to be removed in 3.0. Use the ApcClassLoader class instead.
  */
 class ApcUniversalClassLoader extends UniversalClassLoader
 {

src/Symfony/Component/ClassLoader/CHANGELOG.md

@@ -4,6 +4,9 @@ CHANGELOG
 2.4.0
 -----
 
+ * deprecated the UniversalClassLoader in favor of the ClassLoader class instead
+ * deprecated the ApcUniversalClassLoader in favor of the ApcClassLoader class instead
+ * deprecated the DebugUniversalClassLoader in favor of the DebugClassLoader class from the Debug component
  * deprecated the DebugClassLoader as it has been moved to the Debug component instead
 
 2.3.0

src/Symfony/Component/ClassLoader/DebugUniversalClassLoader.php

@@ -15,6 +15,8 @@ namespace Symfony\Component\ClassLoader;
  * Checks that the class is actually declared in the included file.
  *
  * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated Deprecated since version 2.4, to be removed in 3.0. Use the DebugClassLoader provided by the Debug component instead.
  */
 class DebugUniversalClassLoader extends UniversalClassLoader
 {

src/Symfony/Component/ClassLoader/UniversalClassLoader.php

@@ -57,6 +57,8 @@ namespace Symfony\Component\ClassLoader;
  * @author Fabien Potencier <fabien@symfony.com>
  *
  * @api
+ *
+ * @deprecated Deprecated since version 2.4, to be removed in 3.0. Use the ClassLoader class instead.
  */
 class UniversalClassLoader
 {