[TASK] Remove explicit phpstan dependency

composer.json

@@ -9,7 +9,6 @@
     "require": {
         "php": "^7.2",
         "nette/utils": "^3.1",
-        "phpstan/phpstan": "^0.12.42",
         "rector/rector": "0.8.48"
     },
     "require-dev": {

stubs/TYPO3Fluid/Core/ViewHelper/AbstractTagBasedViewHelper.php

@@ -0,0 +1,14 @@
+<?php
+declare(strict_types=1);
+
+
+namespace TYPO3Fluid\Fluid\Core\ViewHelper;
+
+if (class_exists(AbstractTagBasedViewHelper::class)) {
+    return;
+}
+
+abstract class AbstractTagBasedViewHelper extends AbstractViewHelper
+{
+
+}

stubs/TYPO3Fluid/Core/ViewHelper/AbstractViewHelper.php

@@ -3,12 +3,19 @@
 
 namespace TYPO3Fluid\Fluid\Core\ViewHelper;
 
+use TYPO3Fluid\Fluid\Core\Rendering\RenderingContextInterface;
+
 if (class_exists(AbstractViewHelper::class)) {
     return;
 }
 
 class AbstractViewHelper
 {
+    /**
+     * @var RenderingContextInterface
+     */
+    protected $renderingContext;
+
     public function initializeArguments(): void
     {
 

stubs/TYPO3Fluid/Rendering/RenderingContextInterface.php

@@ -0,0 +1,12 @@
+<?php
+
+namespace TYPO3Fluid\Fluid\Core\Rendering;
+
+if (class_exists(RenderingContextInterface::class)) {
+    return;
+}
+
+interface RenderingContextInterface
+{
+
+}