[Messenger] helpful exception when requesting an AMQP queue that is not configured

Author: dbu

Transport/Connection.php

@@ -509,6 +509,9 @@ public function channel(): \AMQPChannel
     public function queue(string $queueName): \AMQPQueue
     {
         if (!isset($this->amqpQueues[$queueName])) {
+            if (!\array_key_exists($queueName, $this->queuesOptions)) {
+                throw new InvalidArgumentException(sprintf('Exchange "%s" does not have a queue named "%s", known queues are "%s"', $this->exchangeOptions['name'], $queueName, implode('", "', array_keys($this->queuesOptions))));
+            }
             $queueConfig = $this->queuesOptions[$queueName];
 
             $amqpQueue = $this->amqpFactory->createQueue($this->channel());