[PATCH 0/3] MR1830: Fixing some debugger tests when run on Windows.

[eric pouech (＠epo)]

Since test errors reported in MR!1823, I gave a spin at scheding some light
on these errors.

This series shall fix a couple of them, even there are still a couple
standing (eg. https://testbot.winehq.org/JobDetails.pl?Key=127712).