Add Composer autoloading functions and PHPStan for testing

vendor/nikic/php-parser/lib/PhpParser/Node/Scalar/Encapsed.php

@@ -0,0 +1,31 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Scalar;
+
+use PhpParser\Node\Expr;
+use PhpParser\Node\Scalar;
+
+class Encapsed extends Scalar
+{
+    /** @var Expr[] list of string parts */
+    public $parts;
+
+    /**
+     * Constructs an encapsed string node.
+     *
+     * @param Expr[] $parts      Encaps list
+     * @param array  $attributes Additional attributes
+     */
+    public function __construct(array $parts, array $attributes = []) {
+        parent::__construct($attributes);
+        $this->parts = $parts;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['parts'];
+    }
+    
+    public function getType() : string {
+        return 'Scalar_Encapsed';
+    }
+}