FEATURE: Migrate inline comments for IDEs

* Check all inline comments matching the necessary pattern.
* Check the contained class name.
* Migrate class name.

Resolves: #3

Readme.rst

@@ -51,6 +51,8 @@ new ones like ``\TYPO3\Extbase\...``. This is done for:
 
 - Typehints in methods and function like injects.
 
+- Inline comments for IDEs, e.g. ``/* @var $configurationManager
+  Tx_Extbase_Configuration_ConfigurationManager */``
 
 What does it look like?
 =======================

src/Standards/Typo3Update/Sniffs/LegacyClassnames/InlineCommentSniff.php

@@ -0,0 +1,85 @@
+<?php
+
+/*
+ * Copyright (C) 2017  Daniel Siepmann <coding@daniel-siepmann.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+/**
+ * Migrate PHP inline comments, e.g. for IDEs.
+ */
+class Typo3Update_Sniffs_LegacyClassnames_InlineCommentSniff implements PHP_CodeSniffer_Sniff
+{
+    use \Typo3Update\Sniffs\LegacyClassnames\ClassnameCheckerTrait;
+
+    /**
+     * Original token content for reuse accross methods.
+     * @var string
+     */
+    protected $originalTokenContent = '';
+
+    /**
+     * Returns the token types that this sniff is interested in.
+     *
+     * @return array<int>
+     */
+    public function register()
+    {
+        return [
+            T_COMMENT,
+        ];
+    }
+
+    /**
+     * Processes the tokens that this sniff is interested in.
+     *
+     * @param PHP_CodeSniffer_File $phpcsFile The file where the token was found.
+     * @param int                  $stackPtr  The position in the stack where
+     *                                        the token was found.
+     *
+     * @return void
+     */
+    public function process(PHP_CodeSniffer_File $phpcsFile, $stackPtr)
+    {
+        $tokens = $phpcsFile->getTokens();
+        if (substr($tokens[$stackPtr]['content'], 0, 9) !== '/* @var $') {
+            return;
+        }
+
+        $commentParts = explode(' ', $tokens [$stackPtr ]['content']);
+        if (count($commentParts) !== 5) {
+            return;
+        }
+
+        $this->originalTokenContent = $tokens[$stackPtr]['content'];
+        $this->addFixableError($phpcsFile, $stackPtr, $commentParts[3]);
+    }
+
+    /**
+     * As token contains more then just class name, we have to build new content ourself.
+     *
+     * @param string $classname
+     * @return string
+     */
+    public function getTokenForReplacement($classname)
+    {
+        $token = explode(' ', $this->originalTokenContent);
+        $token[3] = $classname;
+
+        return implode(' ', $token);
+    }
+}