Merge branch '5.4' into 6.2

* 5.4:
  Fix some Composer keywords
  [FrameworkBundle] Rename limiter’s `strategy` to `policy` in XSD
  [VarDumper] Fixed dumping of CutStub
  Fix test
  Change limit argument from string to integer.
  [Messenger] Fix `evaluate()` calls in `WorkerTest`
  [Mailer] STDOUT blocks infinitely under Windows when STDERR is filled

Author: fabpot

Tests/WorkerTest.php

@@ -206,7 +206,7 @@ public function testWorkerDispatchesEventsOnSuccess()
         $eventDispatcher->expects($this->exactly(5))
             ->method('dispatch')
             ->willReturnCallback(function ($event) use (&$series) {
-                array_shift($series)->evaluate($event, '', true);
+                array_shift($series)->evaluate($event);
 
                 if ($event instanceof WorkerRunningEvent) {
                     $event->getWorker()->stop();
@@ -260,7 +260,7 @@ public function testWorkerDispatchesEventsOnError()
         $eventDispatcher->expects($this->exactly(5))
             ->method('dispatch')
             ->willReturnCallback(function ($event) use (&$series) {
-                array_shift($series)->evaluate($event, '', true);
+                array_shift($series)->evaluate($event);
 
                 if ($event instanceof WorkerRunningEvent) {
                     $event->getWorker()->stop();