Make Illuminate\View\View Macroable. (#23787)

* Make Illuminate\View\View Macroable.

* Update to use __call as macroCall to avoid conflict.

src/Illuminate/View/View.php

@@ -9,13 +9,18 @@
 use Illuminate\Support\Str;
 use Illuminate\Support\MessageBag;
 use Illuminate\Contracts\View\Engine;
+use Illuminate\Support\Traits\Macroable;
 use Illuminate\Contracts\Support\Arrayable;
 use Illuminate\Contracts\Support\Renderable;
 use Illuminate\Contracts\Support\MessageProvider;
 use Illuminate\Contracts\View\View as ViewContract;
 
 class View implements ArrayAccess, ViewContract
 {
+    use Macroable {
+        __call as macroCall;
+    }
+
     /**
      * The view factory instance.
      *
@@ -395,6 +400,10 @@ public function __unset($key)
      */
     public function __call($method, $parameters)
     {
+        if (static::hasMacro($method)) {
+            return $this->macroCall($method, $parameters);
+        }
+
         if (! Str::startsWith($method, 'with')) {
             throw new BadMethodCallException(sprintf(
                 'Method %s::%s does not exist.', static::class, $method