https://bugs.winehq.org/show_bug.cgi?id=50382
--- Comment #6 from j-r@online.de --- Again, sorry that my cluelessness spams your inboxes.
I checked my build and it seems the bundled vkd3d is self contained and I can't do anything wrong:-)
So the result is that the original problem still exists, but the relevant code is now part of vkd3d. I guess that means we move this bug to the vkd3d component.
I've dumped the shader hlsl and parsing fails before any actual shader code on the following definition
string description = "Uber Shader v2.0";
I've looked at the open vkd3d bugs and this particular problem might already be mentioned - as a well known problem? - in https://bugs.winehq.org/show_bug.cgi?id=33979#c4 , but it seems not to be the focus of that or any other bug.