msvcp90: Fix __cdecl functions definitions that returns structures

[Alexandre Julliard]

Piotr Caban <piotr at codeweavers.com> writes:

> In code produced by gcc callee removes hidden return argument. In code
> produced by MS Visual Studio caller is responsible for removing the
> hidden argument.

That's only for structures larger than 8 bytes, which isn't the case at
least for _Getcoll. Some tests would probably be a good idea.

-- 
Alexandre Julliard
julliard at winehq.org