mscorsvw.exe background processing is draining a lot of
CPU processing on Windows platforms. Executing the list
of to be processed items with full CPU capacity should
clear out the list and stop the background processing.
Task-number: QTQAINFRA-1775
Change-Id: Ib12bc10f4572390f20bfea915ca48ec398de46ee
Reviewed-by: Heikki Halmet <heikki.halmet@qt.io>