fixes symfony#21

also fix an edge case with empty route name

Added Laravel 4.x security advisories

This PR was merged into the 5.2-dev branch.

Discussion
----------

[VarDumper] Support for ReflectionAttribute

| Q             | A
| ------------- | ---
| Branch?       | master
| Bug fix?      | no
| New feature?  | yes
| Deprecations? | no
| Tickets       | N/A
| License       | MIT
| Doc PR        | not needed

VarDumper currently does not understand that certain reflection objects might have attributes attached to it. Dumping a `ReflectionAttribute` just yields `ReflectionAttribute {#4711}` which is not really helpful. This PR attempts to fix this.

```
ReflectionAttribute {#4711
  name: "App\MyAttribute"
  arguments: array:2 [
    0 => "one"
    "extra" => "hello"
  ]
}
```

While working on this, I noticed that class constants (which can be reflected on since PHP 7.1) are just dumped as plain values, so I've also added a caster for `ReflectionClasConstant` as bonus.

The full output for the `LotsOfAttributes` fixture class that is included with is PR looks like this:

<details>

```
^ ReflectionClass {#7
  +name: "Symfony\Component\VarDumper\Tests\Fixtures\LotsOfAttributes"
  modifiers: "final"
  implements: []
  constants: array:1 [
    0 => ReflectionClassConstant {#20
      +name: "SOME_CONSTANT"
      +class: "Symfony\Component\VarDumper\Tests\Fixtures\LotsOfAttributes"
      modifiers: "public"
      value: "some value"
      attributes: array:2 [
        0 => ReflectionAttribute {#33
          name: "Symfony\Component\VarDumper\Tests\Fixtures\RepeatableAttribute"
          arguments: array:1 [
            0 => "one"
          ]
        }
        1 => ReflectionAttribute {#34
          name: "Symfony\Component\VarDumper\Tests\Fixtures\RepeatableAttribute"
          arguments: array:1 [
            0 => "two"
          ]
        }
      ]
    }
  ]
  properties: array:1 [
    "someProperty" => ReflectionProperty {#19
      +name: "someProperty"
      +class: "Symfony\Component\VarDumper\Tests\Fixtures\LotsOfAttributes"
      modifiers: "private"
      attributes: array:1 [
        0 => ReflectionAttribute {#30
          name: "Symfony\Component\VarDumper\Tests\Fixtures\MyAttribute"
          arguments: array:2 [
            0 => "one"
            "extra" => "hello"
          ]
        }
      ]
    }
  ]
  methods: array:1 [
    "someMethod" => ReflectionMethod {#21
      +name: "someMethod"
      +class: "Symfony\Component\VarDumper\Tests\Fixtures\LotsOfAttributes"
      returnType: "void"
      parameters: {
        $someParameter: ReflectionParameter {#28
          +name: "someParameter"
          position: 0
          attributes: array:1 [
            0 => ReflectionAttribute {#42
              name: "Symfony\Component\VarDumper\Tests\Fixtures\MyAttribute"
              arguments: array:1 [
                0 => "three"
              ]
            }
          ]
          typeHint: "string"
        }
      }
      attributes: array:1 [
        0 => ReflectionAttribute {#27
          name: "Symfony\Component\VarDumper\Tests\Fixtures\MyAttribute"
          arguments: array:1 [
            0 => "two"
          ]
        }
      ]
      modifiers: "public"
    }
  ]
  attributes: array:1 [
    0 => ReflectionAttribute {#22
      name: "Symfony\Component\VarDumper\Tests\Fixtures\MyAttribute"
      arguments: []
    }
  ]
  extra: {
    file: "./src/Symfony/Component/VarDumper/Tests/Fixtures/LotsOfAttributes.php"
    line: "15 to 28"
    isUserDefined: true
  }
}
```

</details>

Commits
-------

34dbf01 [VarDumper] Support for ReflectionAttribute.

Run PHP CS Fixer in the CI. Add Travis badge.

# Das ist die erste Commit-Beschreibung:

[Notifier] add support for gatewayapi-notifier

# Die Commit-Beschreibung symfony#2 wird ausgelassen:

# Make GatewayAPITransportFactory final

# Die Commit-Beschreibung symfony#3 wird ausgelassen:

# Fix typo in gatewaypi

# Die Commit-Beschreibung symfony#4 wird ausgelassen:

# Fix typo

# Die Commit-Beschreibung symfony#5 wird ausgelassen:

# Update README.md

# Die Commit-Beschreibung symfony#6 wird ausgelassen:

# Rename GatewayAPI -> GatewayApi

# Die Commit-Beschreibung symfony#7 wird ausgelassen:

# Add GatewayApiTransportFactory tests

# Die Commit-Beschreibung symfony#8 wird ausgelassen:

# Add GatewayApiTransportTest testSend

# Die Commit-Beschreibung symfony#9 wird ausgelassen:

# Add GatewayApiTransportTest testSupportsSmsMessage

# Die Commit-Beschreibung symfony#10 wird ausgelassen:

# Add GatewayApiTransportTest testNotSupportsChatMessage

# Die Commit-Beschreibung symfony#11 wird ausgelassen:

# Lint code

# Die Commit-Beschreibung symfony#12 wird ausgelassen:

# Fix name and email in composer.json
#
# Co-authored-by: Tobias Nyholm <tobias.nyholm@gmail.com>

# Die Commit-Beschreibung symfony#13 wird ausgelassen:

# Remove extra from composer.json

# Die Commit-Beschreibung symfony#14 wird ausgelassen:

# Update version tag in GatewayApiTransport

# Die Commit-Beschreibung symfony#15 wird ausgelassen:

# Add /.gitattributes export-ignore in .gitattributes

# Die Commit-Beschreibung symfony#16 wird ausgelassen:

# Update UnsupportedSchemeException

# Die Commit-Beschreibung symfony#17 wird ausgelassen:

# Add required space in phpdoc

# Die Commit-Beschreibung symfony#18 wird ausgelassen:

# Update GatewayApiTransportFactory.php
#
# Update version tag in GatewayApiTransportFactory

# Die Commit-Beschreibung symfony#19 wird ausgelassen:

# [Notifier] add support for gatewayapi-notifier

# Die Commit-Beschreibung symfony#20 wird ausgelassen:

# Make GatewayAPITransportFactory final

# Die Commit-Beschreibung symfony#21 wird ausgelassen:

# Make GatewayAPITransportFactory final

# Die Commit-Beschreibung symfony#22 wird ausgelassen:

# Fix typo in gatewaypi

# Die Commit-Beschreibung symfony#23 wird ausgelassen:

# Fix typo

# Die Commit-Beschreibung symfony#24 wird ausgelassen:

# Update README.md

…lishing a message. (jwage)

This PR was squashed before being merged into the 6.4 branch.

Discussion
----------

[Messenger] [Amqp] Handle AMQPConnectionException when publishing a message.

| Q             | A
| ------------- | ---
| Branch?       | 6.4
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Issues        | Fix #36538 Fix #48241
| License       | MIT

If you have a message handler that dispatches messages to another queue, you can encounter `AMQPConnectionException` with the message "Library error: a SSL error occurred" or "a socket error occurred"  depending on if you are using tls or not or if you are running behind a load balancer or not.

You can manually reproduce this issue by dispatching a message where the handler then dispatches another message to a different queue, then go to rabbitmq admin and close the connection manually, then dispatch another message and when the message handler goes to dispatch the other message, you will get this exception:

```
a socket error occurred
#0 /vagrant/vendor/symfony/amqp-messenger/Transport/AmqpTransport.php(60): Symfony\Component\Messenger\Bridge\Amqp\Transport\AmqpSender->send()
#1 /vagrant/vendor/symfony/messenger/Middleware/SendMessageMiddleware.php(62): Symfony\Component\Messenger\Bridge\Amqp\Transport\AmqpTransport->send()
#2 /vagrant/vendor/symfony/messenger/Middleware/FailedMessageProcessingMiddleware.php(34): Symfony\Component\Messenger\Middleware\SendMessageMiddleware->handle()
#3 /vagrant/vendor/symfony/messenger/Middleware/DispatchAfterCurrentBusMiddleware.php(61): Symfony\Component\Messenger\Middleware\FailedMessageProcessingMiddleware->handle()
#4 /vagrant/vendor/symfony/messenger/Middleware/RejectRedeliveredMessageMiddleware.php(41): Symfony\Component\Messenger\Middleware\DispatchAfterCurrentBusMiddleware->handle()
#5 /vagrant/vendor/symfony/messenger/Middleware/AddBusNameStampMiddleware.php(37): Symfony\Component\Messenger\Middleware\RejectRedeliveredMessageMiddleware->handle()
#6 /vagrant/vendor/symfony/messenger/Middleware/TraceableMiddleware.php(40): Symfony\Component\Messenger\Middleware\AddBusNameStampMiddleware->handle()
#7 /vagrant/vendor/symfony/messenger/MessageBus.php(70): Symfony\Component\Messenger\Middleware\TraceableMiddleware->handle()
#8 /vagrant/vendor/symfony/messenger/TraceableMessageBus.php(38): Symfony\Component\Messenger\MessageBus->dispatch()
#9 /vagrant/src/Messenger/MessageBus.php(37): Symfony\Component\Messenger\TraceableMessageBus->dispatch()
#10 /vagrant/vendor/symfony/mailer/Mailer.php(66): App\Messenger\MessageBus->dispatch()
#11 /vagrant/src/Mailer/Mailer.php(83): Symfony\Component\Mailer\Mailer->send()
#12 /vagrant/src/Mailer/Mailer.php(96): App\Mailer\Mailer->send()
#13 /vagrant/src/MessageHandler/Trading/StrategySubscriptionMessageHandler.php(118): App\Mailer\Mailer->sendEmail()
#14 /vagrant/src/MessageHandler/Trading/StrategySubscriptionMessageHandler.php(72): App\MessageHandler\Trading\StrategySubscriptionMessageHandler->handle()
#15 /vagrant/vendor/symfony/messenger/Middleware/HandleMessageMiddleware.php(152): App\MessageHandler\Trading\StrategySubscriptionMessageHandler->__invoke()
#16 /vagrant/vendor/symfony/messenger/Middleware/HandleMessageMiddleware.php(91): Symfony\Component\Messenger\Middleware\HandleMessageMiddleware->callHandler()
#17 /vagrant/vendor/symfony/messenger/Middleware/SendMessageMiddleware.php(71): Symfony\Component\Messenger\Middleware\HandleMessageMiddleware->handle()
#18 /vagrant/vendor/symfony/messenger/Middleware/FailedMessageProcessingMiddleware.php(34): Symfony\Component\Messenger\Middleware\SendMessageMiddleware->handle()
#19 /vagrant/vendor/symfony/messenger/Middleware/DispatchAfterCurrentBusMiddleware.php(68): Symfony\Component\Messenger\Middleware\FailedMessageProcessingMiddleware->handle()
#20 /vagrant/vendor/symfony/messenger/Middleware/RejectRedeliveredMessageMiddleware.php(41): Symfony\Component\Messenger\Middleware\DispatchAfterCurrentBusMiddleware->handle()
#21 /vagrant/vendor/symfony/messenger/Middleware/AddBusNameStampMiddleware.php(37): Symfony\Component\Messenger\Middleware\RejectRedeliveredMessageMiddleware->handle()
#22 /vagrant/vendor/symfony/messenger/Middleware/TraceableMiddleware.php(40): Symfony\Component\Messenger\Middleware\AddBusNameStampMiddleware->handle()
#23 /vagrant/vendor/symfony/messenger/MessageBus.php(70): Symfony\Component\Messenger\Middleware\TraceableMiddleware->handle()
#24 /vagrant/vendor/symfony/messenger/TraceableMessageBus.php(38): Symfony\Component\Messenger\MessageBus->dispatch()
#25 /vagrant/vendor/symfony/messenger/RoutableMessageBus.php(54): Symfony\Component\Messenger\TraceableMessageBus->dispatch()
#26 /vagrant/vendor/symfony/messenger/Worker.php(162): Symfony\Component\Messenger\RoutableMessageBus->dispatch()
#27 /vagrant/vendor/symfony/messenger/Worker.php(109): Symfony\Component\Messenger\Worker->handleMessage()
#28 /vagrant/vendor/symfony/messenger/Command/ConsumeMessagesCommand.php(238): Symfony\Component\Messenger\Worker->run()
#29 /vagrant/vendor/symfony/console/Command/Command.php(326): Symfony\Component\Messenger\Command\ConsumeMessagesCommand->execute()
#30 /vagrant/vendor/symfony/console/Application.php(1096): Symfony\Component\Console\Command\Command->run()
#31 /vagrant/vendor/symfony/framework-bundle/Console/Application.php(126): Symfony\Component\Console\Application->doRunCommand()
#32 /vagrant/vendor/symfony/console/Application.php(324): Symfony\Bundle\FrameworkBundle\Console\Application->doRunCommand()
#33 /vagrant/vendor/symfony/framework-bundle/Console/Application.php(80): Symfony\Component\Console\Application->doRun()
#34 /vagrant/vendor/symfony/console/Application.php(175): Symfony\Bundle\FrameworkBundle\Console\Application->doRun()
#35 /vagrant/vendor/symfony/runtime/Runner/Symfony/ConsoleApplicationRunner.php(49): Symfony\Component\Console\Application->run()
#36 /vagrant/vendor/autoload_runtime.php(29): Symfony\Component\Runtime\Runner\Symfony\ConsoleApplicationRunner->run()
#37 /vagrant/bin/console(11): require_once('...')
#38 {main}
```

TODO:

- [x] Add test for retry logic when publishing messages

Commits
-------

f123370 [Messenger] [Amqp] Handle AMQPConnectionException when publishing a message.