qtcassert: move actual printing to separate function and enforce style

This also allows simple setting of breakpoints on failed asserts.

Change-Id: I6dd84cbfaf659d57e39f3447386cebc0221b2b84
Reviewed-by: Daniel Teske <daniel.teske@nokia.com>

src/plugins/debugger/watchhandler.cpp

@@ -454,7 +454,7 @@ static QString translate(const QString &str)
             const int len = str.indexOf(QLatin1Char(' ')) - numberPos;
             const int size = str.mid(numberPos, len).toInt(&ok);
             QTC_ASSERT(ok, qWarning("WatchHandler: Invalid item count '%s'",
-                qPrintable(str)))
+                qPrintable(str)));
             return moreThan ?
                      WatchHandler::tr("<more than %n items>", 0, size) :
                      WatchHandler::tr("<%n items>", 0, size);