[all-commits] [llvm/llvm-project] cedd07: [libcxx] fixes `common_reference` requirement for ...

[Christopher Di Bella via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: cedd07df5136ba446be23dbd2ca7d29d7b82cd60
      https://github.com/llvm/llvm-project/commit/cedd07df5136ba446be23dbd2ca7d29d7b82cd60
  Author: Christopher Di Bella <cjdb at google.com>
  Date:   2021-04-07 (Wed, 07 Apr 2021)

  Changed paths:
    M libcxx/docs/Cxx2aStatusIssuesStatus.csv
    M libcxx/include/concepts
    M libcxx/test/std/concepts/concepts.lang/concept.swappable/swappable_with.compile.pass.cpp

  Log Message:
  -----------
  [libcxx] fixes `common_reference` requirement for `swappable_with`

LWG3175 identifies that the `common_reference` requirement for
`swappable_with` is over-constraining and doesn't need to concern itself
with cv- or reference qualifiers.

Differential Revision: https://reviews.llvm.org/D99817