The WinAPI funcion DebugBreakProcess must be called from the same bitness as the target process, so win64interrupt is a small 64bit executable calling this function.

Task-number: QTCREATORBUG-2521
Change-Id: I3259d505b9b228be72ca4eaca42a9cde5b4984ac
Reviewed-by: hjk <qthjk@ovi.com>