[9.x] Fix \Illuminate\Support\Facades\App::storagePath() method ignores $path argument (#39648)

* add $path argument to storagePath()

* Update Application.php

* formatting

Co-authored-by: Taylor Otwell <taylor@laravel.com>

Author: afilippov1985

src/Illuminate/Contracts/Foundation/Application.php

@@ -56,9 +56,10 @@ public function resourcePath($path = '');
     /**
      * Get the path to the storage directory.
      *
+     * @param  string  $path
      * @return string
      */
-    public function storagePath();
+    public function storagePath($path = '');
 
     /**
      * Get or check the current application environment.

src/Illuminate/Foundation/Application.php

@@ -454,11 +454,13 @@ public function publicPath()
     /**
      * Get the path to the storage directory.
      *
+     * @param  string  $path
      * @return string
      */
-    public function storagePath()
+    public function storagePath($path = '')
     {
-        return $this->storagePath ?: $this->basePath.DIRECTORY_SEPARATOR.'storage';
+        return ($this->storagePath ?: $this->basePath.DIRECTORY_SEPARATOR.'storage')
+                            .($path ? DIRECTORY_SEPARATOR.$path : '');
     }
 
     /**

src/Illuminate/Foundation/helpers.php

@@ -800,7 +800,7 @@ function session($key = null, $default = null)
      */
     function storage_path($path = '')
     {
-        return app('path.storage').($path ? DIRECTORY_SEPARATOR.$path : $path);
+        return app()->storagePath($path);
     }
 }