[clang-tools-extra] [llvm] [libcxx] [clang] [libcxx] adds ranges::fold_left_with_iter and ranges::fold_left (PR #75259)

[Christopher Di Bella via cfe-commits]

cjdb wrote:

Merging, with the promise to diligently resolve post-commit feedback in early January. Anything that's specific to this patch will be actioned before starting work on the remaining fold algorithms, and anything that's generalised to `std::ranges` will be actioned after finishing them.

https://github.com/llvm/llvm-project/pull/75259