Composer update

* updated Laravel to v5.6.38
* Added laravel tinker in dev dependencies

vendor/psy/psysh/src/CodeCleaner/NamespaceAwarePass.php

@@ -0,0 +1,71 @@
+<?php
+
+/*
+ * This file is part of Psy Shell.
+ *
+ * (c) 2012-2018 Justin Hileman
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Psy\CodeCleaner;
+
+use PhpParser\Node;
+use PhpParser\Node\Name;
+use PhpParser\Node\Name\FullyQualified as FullyQualifiedName;
+use PhpParser\Node\Stmt\Namespace_;
+
+/**
+ * Abstract namespace-aware code cleaner pass.
+ */
+abstract class NamespaceAwarePass extends CodeCleanerPass
+{
+    protected $namespace;
+    protected $currentScope;
+
+    /**
+     * @todo should this be final? Extending classes should be sure to either
+     * use afterTraverse or call parent::beforeTraverse() when overloading.
+     *
+     * Reset the namespace and the current scope before beginning analysis
+     */
+    public function beforeTraverse(array $nodes)
+    {
+        $this->namespace    = [];
+        $this->currentScope = [];
+    }
+
+    /**
+     * @todo should this be final? Extending classes should be sure to either use
+     * leaveNode or call parent::enterNode() when overloading
+     *
+     * @param Node $node
+     */
+    public function enterNode(Node $node)
+    {
+        if ($node instanceof Namespace_) {
+            $this->namespace = isset($node->name) ? $node->name->parts : [];
+        }
+    }
+
+    /**
+     * Get a fully-qualified name (class, function, interface, etc).
+     *
+     * @param mixed $name
+     *
+     * @return string
+     */
+    protected function getFullyQualifiedName($name)
+    {
+        if ($name instanceof FullyQualifiedName) {
+            return \implode('\\', $name->parts);
+        } elseif ($name instanceof Name) {
+            $name = $name->parts;
+        } elseif (!\is_array($name)) {
+            $name = [$name];
+        }
+
+        return \implode('\\', \array_merge($this->namespace, $name));
+    }
+}