Merge branch '6.2' into 6.3

* 6.2:
  [ExpressionLanguage] Fix BC of cached SerializedParsedExpression containing GetAttrNode
  [HttpKernel] Fix CacheAttributeListener priority
  [DependencyInjection] Fix bug when tag name is a text node
  [VarExporter] Fix adding a key to an uninitialized array
  Fix missing command not matching namespace error message
  [SecurityBundle] Fix authenticator existence check in `Security::login()`
  [TwigBundle] Alias BodyRendererInterface
  Point `Security::*` constants to `SecurityRequestAttributes::*` ones
  [Translation] Fix extraction when dealing with VariadicPlaceholder parameters

Author: fabpot

Application.php

@@ -298,6 +298,8 @@ public function doRun(InputInterface $input, OutputInterface $output)
 
                         return isset($event) ? $event->getExitCode() : 1;
                     }
+
+                    throw $e;
                 } catch (NamespaceNotFoundException) {
                     throw $e;
                 }

Tests/ApplicationTest.php

@@ -18,6 +18,7 @@
 use Symfony\Component\Console\Command\HelpCommand;
 use Symfony\Component\Console\Command\LazyCommand;
 use Symfony\Component\Console\Command\SignalableCommandInterface;
+use Symfony\Component\Console\CommandLoader\CommandLoaderInterface;
 use Symfony\Component\Console\CommandLoader\FactoryCommandLoader;
 use Symfony\Component\Console\DependencyInjection\AddConsoleCommandPass;
 use Symfony\Component\Console\Event\ConsoleCommandEvent;
@@ -1466,6 +1467,25 @@ public function testRunWithError()
         }
     }
 
+    public function testRunWithFindError()
+    {
+        $this->expectException(\Error::class);
+        $this->expectExceptionMessage('Find exception');
+
+        $application = new Application();
+        $application->setAutoExit(false);
+        $application->setCatchExceptions(false);
+
+        // Throws an exception when find fails
+        $commandLoader = $this->createMock(CommandLoaderInterface::class);
+        $commandLoader->method('getNames')->willThrowException(new \Error('Find exception'));
+        $application->setCommandLoader($commandLoader);
+
+        // The exception should not be ignored
+        $tester = new ApplicationTester($application);
+        $tester->run(['command' => 'foo']);
+    }
+
     public function testRunAllowsErrorListenersToSilenceTheException()
     {
         $dispatcher = $this->getDispatcher();