Re: [PATCH v3 0/6] MR4459: d3dx9: Support user data in D3DXLoadMeshHierarchyFromXInMemory().

[Paul Gofman (＠gofman)]

v3:
 - Also add _THIS to ISaveUserData definition;
 - Don't initialize GUIDs by value.

-- 
https://gitlab.winehq.org/wine/wine/-/merge_requests/4459#note_53718