TYPO3 Core

In various modules through the backend tooltips (a-Tag titles) are missing.

They either don't exist at all, reference to a locallang label which was removed sometime or reference to a locallang label in a different sysext which is no dependency of the one the label is accessed from.

E.g. in TYPO3\CMS\Backend\View\PageLayoutView:1784

$this->getLanguageService()->sL('LLL:EXT:frontend/Resources/Private/Language/locallang_webinfo.xlf:lang_renderl10n_viewPage') . '">' .

First of all, there is no such label lang_renderl10n_viewPage in this locallang file, moreover is ext:frontend no dependency of ext:backend and last but not least is the label not treated by htmlspecialchars

One more example: TYPO3\CMS\Backend\View\PageLayoutView:1789

htmlspecialchars($this->getLanguageService()->getLL('editThisPage')) . '">' .

Also this label does not exist.