Add Composer autoloading functions and PHPStan for testing

vendor/nikic/php-parser/lib/PhpParser/Node/Identifier.php

@@ -0,0 +1,75 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node;
+
+use PhpParser\NodeAbstract;
+
+/**
+ * Represents a non-namespaced name. Namespaced names are represented using Name nodes.
+ */
+class Identifier extends NodeAbstract
+{
+    /** @var string Identifier as string */
+    public $name;
+
+    private static $specialClassNames = [
+        'self'   => true,
+        'parent' => true,
+        'static' => true,
+    ];
+
+    /**
+     * Constructs an identifier node.
+     *
+     * @param string $name       Identifier as string
+     * @param array  $attributes Additional attributes
+     */
+    public function __construct(string $name, array $attributes = []) {
+        parent::__construct($attributes);
+        $this->name = $name;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['name'];
+    }
+
+    /**
+     * Get identifier as string.
+     *
+     * @return string Identifier as string.
+     */
+    public function toString() : string {
+        return $this->name;
+    }
+
+    /**
+     * Get lowercased identifier as string.
+     *
+     * @return string Lowercased identifier as string
+     */
+    public function toLowerString() : string {
+        return strtolower($this->name);
+    }
+
+    /**
+     * Checks whether the identifier is a special class name (self, parent or static).
+     *
+     * @return bool Whether identifier is a special class name
+     */
+    public function isSpecialClassName() : bool {
+        return isset(self::$specialClassNames[strtolower($this->name)]);
+    }
+
+    /**
+     * Get identifier as string.
+     *
+     * @return string Identifier as string
+     */
+    public function __toString() : string {
+        return $this->name;
+    }
+    
+    public function getType() : string {
+        return 'Identifier';
+    }
+}