[llvm] [llvm-profgen] Support COFF binary (PR #83972)

[Lei Wang via llvm-commits]

================

----------------
wlei-llvm wrote:

The reason we checked the binaries before is the addresses in the binary have to match the addresses in the perfscript, I'm not sure if it's possible to generate a stable addresses using clang during the test. But agreed that it'd be great to make the binaries smaller. 

https://github.com/llvm/llvm-project/pull/83972