[HttpKernel][Console] Revert native return types on Bundle and Command classes

Author: nicolas-grekas

Bundle/Bundle.php

@@ -34,19 +34,27 @@ abstract class Bundle implements BundleInterface
      */
     protected $container;
 
-    public function boot(): void
+    /**
+     * @return void
+     */
+    public function boot()
     {
     }
 
-    public function shutdown(): void
+    /**
+     * @return void
+     */
+    public function shutdown()
     {
     }
 
     /**
      * This method can be overridden to register compilation passes,
      * other extensions, ...
+     *
+     * @return void
      */
-    public function build(ContainerBuilder $container): void
+    public function build(ContainerBuilder $container)
     {
     }
 
@@ -113,7 +121,10 @@ final public function getName(): string
         return $this->name;
     }
 
-    public function registerCommands(Application $application): void
+    /**
+     * @return void
+     */
+    public function registerCommands(Application $application)
     {
     }