[clang] [Clang][Sema] Fix lambda attribute processing order with clang optimize off (PR #217194)

[Kenzo Tjandra via cfe-commits]

ketjandr wrote:

Hey @erichkeane, could you please take a look at this when you have the time? This builds on https://github.com/llvm/llvm-project/pull/215173. Thanks!

https://github.com/llvm/llvm-project/pull/217194