[Console] Added type hint

UPGRADE-3.0.md

@@ -88,6 +88,10 @@ UPGRADE FROM 2.x to 3.0
    $table->render();
    ```
 
+* Parameters of `renderException()` method of the
+  `Symfony\Component\Console\Application` are type hinted.
+  You must add the type hint to your implementations.
+
 ### DependencyInjection
 
  * The methods `Definition::setFactoryClass()`,

src/Symfony/Component/Console/Application.php

@@ -666,7 +666,7 @@ class Application
      * @param \Exception      $e      An exception instance
      * @param OutputInterface $output An OutputInterface instance
      */
-    public function renderException($e, $output)
+    public function renderException(\Exception $e, OutputInterface $output)
     {
         do {
             $title = sprintf('  [%s]  ', get_class($e));