[clang-tools-extra] [llvm-profdata] Do not create numerical strings for MD5 function names read from a Sample Profile. (PR #66164)

[William Junda Huang via cfe-commits]

huangjd wrote:

I will hold on renaming variables to a different patch because this will change files everywhere, may cause confusion to review in this patch. 

https://github.com/llvm/llvm-project/pull/66164