When right clicking on a switch statement with an empty case in its body Qt Creator will crash. The below code demonstrates this:

void test(Qt::Orientation o)
{
    switch (o)
    {
    case 
    }
}

Right clicking on switch with the above code will always reproduce the crash. I can reproduce this in 3.4.2 and 3.5.0 beta 1

I have generated a stack trace of the crash from a local build of 3.4.2 which is attached.