[clang] [llvm] Global string alignment (PR #142346)

[Eli Friedman via llvm-commits]

efriedma-quic wrote:

If there's some general rule that means we want to increase the alignment of globals, I think it makes sense to make CodeGenPrepare or some target-specific pass, instead of trying to fix every frontend and every optimization pass to use increased alignment.

https://github.com/llvm/llvm-project/pull/142346