Merge branch '4.4'

* 4.4:
  [Debug] disable new DebugClassLoader when testing the legacy one
  - updated AbstractToken to compare Roles - Updated isEqualTo method to match roles as default User implements EquatableInterface - added test case - bumped symfony/security-core to 4.4
  typos bis
  typos
  Fix more bad tests
  Fix test fixtures with deprecated method signatures.
  Fix 4.3 tests forward compat
  [Messenger] fix empty amqp body returned as false
  [Mailer] Added messenger to dev dependencies.
  [Validator] Update "suggest" section in composer.json.
  Fix routing cache broken when using generator_class

Author: nicolas-grekas

DeprecationErrorHandler.php

@@ -174,7 +174,7 @@ public function shutdown()
             return;
         }
 
-        if (method_exists(DebugClassLoader::class, 'checkClasses')) {
+        if (class_exists(DebugClassLoader::class, false)) {
             DebugClassLoader::checkClasses();
         }
         $currErrorHandler = set_error_handler('var_dump');

Legacy/SymfonyTestsListenerTrait.php

@@ -245,6 +245,10 @@ public function addWarning($test, $e, $time)
 
     public function endTest($test, $time)
     {
+        if (class_exists(DebugClassLoader::class, false)) {
+            DebugClassLoader::checkClasses();
+        }
+
         $className = \get_class($test);
         $groups = Test::getGroups($className, $test->getName(false));
 

bin/simple-phpunit.php

@@ -10,7 +10,7 @@
  */
 
 // Please update when phpunit needs to be reinstalled with fresh deps:
-// Cache-Id: 2019-09-02 16:00 UTC
+// Cache-Id: 2019-09-06 15:00 UTC
 
 error_reporting(-1);