proEval(), proParser(): the loop was iterating over a temporary so it
couldn't have changed it. Hold the container in a const auto variable
and use ranged-for.
formatValue(): iterating over a const QList& parameter, and the container
isn't changed at the call sites during iterating, so Q_FOREACH wasn't
needed to beging with. Use ranged-for instead.
Task-number: QTBUG-115839
Change-Id: Idabe0bbd84b5bcc86cef275f80497651353a4d9e
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>