[llvm] [AArch64] Add support for SHF_AARCH64_PURECODE ELF section flag (1/3) (PR #125687)

[Csanád Hajdú via llvm-commits]

Il-Capitano wrote:

@smithp35 I can't see any comments made by you. Are you sure you saved/published them?

https://github.com/llvm/llvm-project/pull/125687