[clang] [clang][CodeGen] Emit lifetime markers for block-scoped compound literals in C (PR #219045)

[Nick Desaulniers via cfe-commits]

nickdesaulniers wrote:

> There's a stupid edge case here which this doesn't take into account:

Good catch. (fixed) Who hurt you this way? :stuck_out_tongue_closed_eyes:

https://github.com/llvm/llvm-project/pull/219045