[clang] [llvm] [X86][AVX10.2] Support AVX10.2-CONVERT new instructions. (PR #101600)

[Joseph Huber via cfe-commits]

jhuber6 wrote:

This is all it takes to reproduce this on my machine so I'm going to revert. x64 Linux, CPU is `znver3`.
```console
echo "#include <immintrin.h>" | ./bin/clang++ -x c++ -
```

https://github.com/llvm/llvm-project/pull/101600