first commit

typo3/sysext/adminpanel/Migrations/Code/ClassAliasMap.php

@@ -0,0 +1,5 @@
+<?php
+return [
+    'TYPO3\\CMS\\Frontend\\View\\AdminPanelView' => \TYPO3\CMS\Adminpanel\View\AdminPanelView::class,
+    'TYPO3\\CMS\\Frontend\\View\\AdminPanelViewHookInterface' => \TYPO3\CMS\Adminpanel\View\AdminPanelViewHookInterface::class
+];

typo3/sysext/adminpanel/Migrations/Code/LegacyClassesForIde.php

@@ -0,0 +1,13 @@
+<?php
+namespace {
+    die('Access denied');
+}
+
+namespace TYPO3\CMS\Frontend\View {
+    class AdminPanelView extends \TYPO3\CMS\Adminpanel\View\AdminPanelView
+    {
+    }
+    interface AdminPanelViewHookInterface extends \TYPO3\CMS\Adminpanel\View\AdminPanelViewHookInterface
+    {
+    }
+}