oleaut32 tests and VarAdd(VT_DISPATCH, ...)

[Dan Kegel]

Alex Villací­s Lasso wrote:

BTW, I see many attempts of VarAdd(VT_DISPATCH, ...) tested. All of them
are expected to fail. However, the tax app does just that
(VarAdd(VT_DISPATCH, ...)) and fails to display a print preview because
of this. I think that native oleaut32 fails these tests, not because it
does not support VarAdd(VT_DISPATCH) at all, but because these
VT_DISPATCHs are incorrectly formed (as in, just zeroing the variant,
then assigning VT_DISPATCH as variant type). I need to confirm this with
a test program.

Yes, if you can improve the variant tests for oleaut32, please do!
- Dan