Fixes#147394
References DXC for the implementation logic:
d751c827ed/lib/HLSL/DxilPreparePasses.cpp (L693-L699)
If DXIL Version < 1.6 then replace lifetime intrinsics with stores
- For validator version >= 1.6, store an undef
- For validator version < 1.6, store zeros
else keep the lifetime intrinsics in the DXIL.
After this PR, the number of DML shaders failing validation due to
#146974 is reduced from 157 to 50.
d47c126fbf