[DirectX] Lower `llvm.lifetime.*` intrinsics to stores when DXIL version is lower than 1.6#147432

Icohedron merged 5 commits intollvm:mainllvm/llvm-project:mainfrom

Icohedron:lifetime-intrinsics-dxil-1.6Icohedron/llvm-project:lifetime-intrinsics-dxil-1.6Copy head branch name to clipboard