Disabled runControls would still receive and send signals, confusing
the profiler state.

Also, connect lambdas with receiver argument where possible.

Change-Id: I0cd43456d3462efe402e9d68792b67314e9b6e0b
Task-number: QTCREATORBUG-16073
Reviewed-by: Joerg Bornemann <joerg.bornemann@theqtcompany.com>