[libcxx-commits] [libcxx] [libc++] Support sorting consteval-only ranges (PR #134623)

[A. Jiang via libcxx-commits]

frederick-vs-ja wrote:

> I this change implementing part of a paper that we should mention?

The paper is [P0879R0](https://wg21.link/p0879r0), but it seems that the missing piece could be meaningful only if [P2564R3](https://wg21.link/p2564r3)  (DR against C++20) gets implemented.

https://github.com/llvm/llvm-project/pull/134623