Merge branch '3.4'

* 3.4:
  bug #22814 [FrameworkBundle] FC with EventDispatcher 4.0 (xabbuh)
  [PhpUnitBridge] remove unused use statement
  do not used deprecated validator test case class
  do not mock a deprecated interface
  [DI] Added missing deprecation in changelog
  [Ldap] add a changelog file
  [Security][Serializer][DI] Add new arguments typehints in preparation for 4.0
  [MonologBridge] Fix the Monlog ServerLogHandler from Hanging on Windows
  [DependencyInjection] Fix dumping of RewindableGenerator with empty IteratorArgument
  [DI][Serializer] Fix missing de(normalizer|coder) autoconfig
  Use 0.0.0.0 as the server log host default.

Author: nicolas-grekas

CHANGELOG.md

@@ -0,0 +1,7 @@
+CHANGELOG
+=========
+
+3.1.0
+-----
+
+ * The `LdapClient` class is deprecated. Use the `Ldap` class instead.

LdapClient.php

@@ -18,7 +18,7 @@
  * @author Francis Besset <francis.besset@gmail.com>
  * @author Charles Sarrazin <charles@sarraz.in>
  *
- * @deprecated The LdapClient class will be removed in Symfony 4.0. You should use the Ldap class instead.
+ * @deprecated since version 3.1, to be removed in 4.0. Use the Ldap class instead.
  */
 final class LdapClient implements LdapClientInterface
 {

LdapClientInterface.php

@@ -19,7 +19,7 @@
  * @author Grégoire Pineau <lyrixx@lyrixx.info>
  * @author Charles Sarrazin <charles@sarraz.in>
  *
- * @deprecated You should use LdapInterface instead
+ * @deprecated since version 3.1, to be removed in 4.0. Use the LdapInterface instead.
  */
 interface LdapClientInterface extends LdapInterface
 {