[clang] [compiler-rt] [llvm] [InstrProf] Fix frontend generated function hash (PR #165358)

[Ellis Hoag via cfe-commits]

ellishg wrote:

> @ellishg @evodius96 All check has passed now. Could you help merge it? many thanks!

I can merge this tomorrow morning 

https://github.com/llvm/llvm-project/pull/165358