[Bug 40350] MinGW binary crashes, but msvc6's one works fine in function when returning aggregate value

https://bugs.winehq.org/show_bug.cgi?id=40350

--- Comment #2 from Dmitry  ---
Yes, PM_PlayerTraceExt has same workaround.
So it is just luck that it works on windows?
I'll check with this workaround in mingw later, i need to make sure that is
will work with both mingw sides too, or leave it as is (and maybe add dynamic
option for enabling workaround).
I know that returning aggregate is bad idea, but it is not our solution. It was
originally made by ValveSoftware in halflife code many years ago and used in
big amount of proprietary code.