Some of the math operators were still missing. Add them and test them
all.
Since the "runInterpreted()" test function takes too long now, split the
qmlcppcodegen test in two: One that runs in compiled mode and one that
runs in interpreted mode.
Fixes: QTBUG-105188
Change-Id: I4b641d5e51b5a7e2a9254be40f257d7b249deb13
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Ulf Hermann