Various test fixes
@mwolff, here are two of your commits cherry-picked from the KF6 branch plus my commit. Adapted your commit messages to Qt 5 and changed the second commit to pass QLatin1String by value (not reference to const). Please review.
@mwolff, here are two of your commits cherry-picked from the KF6 branch plus my commit. Adapted your commit messages to Qt 5 and changed the second commit to pass QLatin1String by value (not reference to const). Please review.