[FrameworkBundle]Ignore LoggingTranslatorPass if there is no Translator definition.

src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Compiler/LoggingTranslatorPass.php

@@ -21,7 +21,7 @@ class LoggingTranslatorPass implements CompilerPassInterface
 {
     public function process(ContainerBuilder $container)
     {
-        if (!$container->hasAlias('logger')) {
+        if (!$container->hasAlias('logger') || !$container->hasAlias('translator')) {
             return;
         }
 

src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Compiler/LoggingTranslatorPassTest.php

@@ -23,7 +23,7 @@ class LoggingTranslatorPassTest extends \PHPUnit_Framework_TestCase
         $container = $this->getMock('Symfony\Component\DependencyInjection\ContainerBuilder');
         $parameterBag = $this->getMock('Symfony\Component\DependencyInjection\ParameterBag\ParameterBagInterface');
 
-        $container->expects($this->once())
+        $container->expects($this->exactly(2))
             ->method('hasAlias')
             ->will($this->returnValue(true));
 
@@ -65,4 +65,19 @@ class LoggingTranslatorPassTest extends \PHPUnit_Framework_TestCase
         $pass = new LoggingTranslatorPass();
         $pass->process($container);
     }
+
+    public function testThatCompilerPassIsIgnoredIfThereIsNotTranslatorDefinition()
+    {
+        $container = $this->getMock('Symfony\Component\DependencyInjection\ContainerBuilder');
+        $container->expects($this->at(0))
+            ->method('hasAlias')
+            ->will($this->returnValue(true));
+
+        $container->expects($this->at(0))
+            ->method('hasAlias')
+            ->will($this->returnValue(false));
+
+        $pass = new LoggingTranslatorPass();
+        $pass->process($container);
+    }
 }