[Bug 46790] Witcher 3 hangs shortly after launch; may show ' press space to skip'

https://bugs.winehq.org/show_bug.cgi?id=46790

--- Comment #9 from Paul Gofman  ---
Created attachment 63815
  --> https://bugs.winehq.org/attachment.cgi?id=63815
Use explicit flag to distinguish between old and d3d10+ constant setting mode

I am attaching the fix (on top of the current Wine-Staging (which has latest
own commit 3a1bf0a033f898969f18a31965a865fde43cc15e now) in case anyone wants
to test it.