[clang] [clang] Lifetime of locals must end before musttail call (PR #109255)

[via cfe-commits]

stefson wrote:

@ostannard can you please backport this patch into the 19.x branch, and also other relevant changes to the musttail issue? clang-19.1.0 was released very broken on arm due to this. 

https://github.com/llvm/llvm-project/pull/109255