for...

"The '(A && !B) || (!A && B)' expression is equivalent to the 'bool(A) != bool(B)' expression"

subcases, where the args are already bool

Change-Id: Ica8b5c4974c513f7f7ad8acf17ca931e85ebc8af
Reviewed-on: https://gerrit.libreoffice.org/62146
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>