TYPO3 Core

typo3/sysext/compatibility7/ext_tables.php
contains

            \TYPO3\CMS\Core\Utility\ExtensionManagementUtility::extPath('compatibility7') . 'Resources/PHP/class.tx_indexed_search_pi_wizicon.php';

\TYPO3\CMS\Core\Utility\ExtensionManagementUtility::extPath('compatibility7') . 'PHP/class.tx_indexed_search_pi_wizicon.php';