[clang] [clang-tools-extra] [llvm] [libcxx] [libc++] P2770R0: "Stashing stashing iterators for proper flattening" (PR #66033)

[Louis Dionne via cfe-commits]

https://github.com/ldionne commented:

Thanks! This is almost good to go, but I am still seeing two review comments I had left which I don't think have been addressed.

https://github.com/llvm/llvm-project/pull/66033