[clang] [C11] Implement WG14 N1285 (temporary lifetimes) (PR #133472)

[Aaron Ballman via cfe-commits]

AaronBallman wrote:

Note, this will fail in precommit CI due to `test/CodeGenObjC/strong-in-c-struct.c`. I am posting this PR to see if there are other failures on Linux platforms that I'm missing locally, and to get an idea whether folks agree that this is heading in the right direction. I'm leaning very heavily on the C++ implementation.

https://github.com/llvm/llvm-project/pull/133472