[llvm] [ADT] Update hash function of uint64_t for DenseMap (PR #95734)

[Chuanqi Xu via llvm-commits]

ChuanqiXu9 wrote:

I feel like the failure may not be related to the one. Since it looks like compiler rt has its own implementation for DenseMap: https://github.com/llvm/llvm-project/blob/main/compiler-rt/lib/sanitizer_common/sanitizer_dense_map.h and hash functions:https://github.com/llvm/llvm-project/blob/main/compiler-rt/lib/sanitizer_common/sanitizer_dense_map_info.h

https://github.com/llvm/llvm-project/pull/95734