Use type casting instead of *val() method

apps/comments/appinfo/app.php

apps/dav/lib/CalDAV/Search/Xml/Filter/LimitFilter.php

apps/dav/lib/CalDAV/Search/Xml/Filter/OffsetFilter.php

apps/dav/lib/Connector/Sabre/CommentPropertiesPlugin.php

apps/dav/lib/Connector/Sabre/Node.php

apps/dav/lib/SystemTag/SystemTagsRelationsCollection.php

apps/files_external/3rdparty/icewind/smb/src/Parser.php

apps/files_trashbin/lib/Expiration.php

apps/files_versions/lib/Expiration.php

apps/files_versions/lib/Storage.php

apps/user_ldap/ajax/getNewServerConfigPrefix.php

apps/user_ldap/lib/Command/Search.php

apps/user_ldap/lib/Connection.php

apps/user_ldap/lib/Controller/ConfigAPIController.php

apps/user_ldap/lib/Group_LDAP.php

apps/user_ldap/lib/Helper.php

apps/user_ldap/lib/Jobs/CleanUp.php

apps/user_ldap/lib/Migration/UUIDFixInsert.php

apps/user_ldap/lib/User/Manager.php

apps/user_ldap/lib/User/OfflineUser.php