Allow to autowire the default logger

Author: dunglas

DependencyInjection/MonologExtension.php

@@ -53,6 +53,11 @@ public function load(array $configs, ContainerBuilder $container)
             $loader->load('monolog.xml');
             $container->setAlias('logger', 'monolog.logger');
 
+            // always autowire the main logger, require Symfony >= 2.8
+            if (method_exists('Symfony\Component\DependencyInjection\Definition', 'addAutowiringType')) {
+                $container->getDefinition('monolog.logger')->addAutowiringType('Psr\Log\LoggerInterface');
+            }
+
             $handlers = array();
 
             foreach ($config['handlers'] as $name => $handler) {