V4 messes up arguments and locals in "hasDirectEval" mode

Problem with watches and locals not showing the correct values when debugging in QML. With a breakpoint inside a signal handler on the QML side the watches and locals section is not showing the right values for the local variables inside that handler.

This might be connected to the way that the information is passed in this case, but by putting a breakpoint in the onDoubleReply handler on the print() line, all the local variables are not correct.