[clang] [Clang] Implement P2718R0 "Lifetime extension in range-based for loops" (PR #76361)

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yronglin wrote:

> LGTM. Do you need me to merge that for you?

Thanks a lot for your review and help! I have commit access, once the CI green, I'll land this patch.

https://github.com/llvm/llvm-project/pull/76361