[Bug 43481] GeoForms Demo shaders fail to compile

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=43481

--- Comment #7 from Zeb Figura  ---
https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/1538 fixes the
preprocessor bug, but it still crashes. There are two errors left:

* E5013: Invalid semantic 'HPOS'.

Not sure what's going on with that one. The same shader seems to fail with
native too, but maybe I'm missing something subtle. Or maybe those shaders
aren't supposed to compile correctly, and it's just the other problem.

* E5017: Aborting due to not yet implemented feature: Flatten "if" conditionals
branches.

Not trivial.