It was previously understanding them as character literal delimiters,
with unfortunate consequences if a numeric literal contained an odd
number of them. Recognize that an apostrophe with a digit on each side
of it isn't the opening quote of a character literal (unless the digit
before it is preceded by a u). Extend the findMocs test to trigger the
bug, prior to the fix; verified it passes with the fix.
Fixes: QTBUG-98845
Change-Id: I5db3ac59aaeade7c2d6c1fb680ba97261ec0e8a9
Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>