[clang] [clang] Introduce [[clang::lifetime_capture_by(X)]] (PR #111499)

[Utkarsh Saxena via cfe-commits]

usx95 wrote:

Thanks for the revert. I think I know what caused the compile time regression. Looking into the leak now and I can reproduce with asan.

https://github.com/llvm/llvm-project/pull/111499