upgrade to laravel 8.x

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/ArrayDimFetch.php

@@ -0,0 +1,34 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class ArrayDimFetch extends Expr
+{
+    /** @var Expr Variable */
+    public $var;
+    /** @var null|Expr Array index / dim */
+    public $dim;
+
+    /**
+     * Constructs an array index fetch node.
+     *
+     * @param Expr      $var        Variable
+     * @param null|Expr $dim        Array index / dim
+     * @param array     $attributes Additional attributes
+     */
+    public function __construct(Expr $var, Expr $dim = null, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->var = $var;
+        $this->dim = $dim;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['var', 'dim'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_ArrayDimFetch';
+    }
+}