The master $GLOBALS[LANG] object should have a more
streamlined API and some methods and public properties
are now deprecated, in order to make this API much more
stateless.

Resolves: #90964
Releases: master
Change-Id: I201cf1b7300e385e3b87ab282290aae8e27041da
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/64056


Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: Daniel Goerz <daniel.goerz@posteo.de>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Daniel Goerz <daniel.goerz@posteo.de>