[TASK] Use JsConfirmation bit mask constants instead of raw integers

Resolves: #70047
Releases: master
Change-Id: Icf74209194f267490dfc71f0c3573540ef1cd7b5
Reviewed-on: http://review.typo3.org/43504


Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Mathias Schreiber <mathias.schreiber@wmdb.de>
Tested-by: Mathias Schreiber <mathias.schreiber@wmdb.de>
Reviewed-by: Andreas Fernandez <typo3@scripting-base.de>
Tested-by: Andreas Fernandez <typo3@scripting-base.de>