[phobos] [dlang/phobos] 7c7af2: add test for Issue 16413

[GitHub via phobos]

  Branch: refs/heads/master
  Home:   https://github.com/dlang/phobos
  Commit: 7c7af21d48be942402008e879976f85093a33d37
      https://github.com/dlang/phobos/commit/7c7af21d48be942402008e879976f85093a33d37
  Author: John Colvin <john.loughran.colvin at gmail.com>
  Date:   2016-08-27 (Sat, 27 Aug 2016)

  Changed paths:
    M std/algorithm/sorting.d

  Log Message:
  -----------
  add test for Issue 16413


  Commit: 45eb00fb4d0d29f40aabd98d661120061746efb5
      https://github.com/dlang/phobos/commit/45eb00fb4d0d29f40aabd98d661120061746efb5
  Author: Andrei Alexandrescu <andrei at erdani.com>
  Date:   2016-08-27 (Sat, 27 Aug 2016)

  Changed paths:
    M std/algorithm/sorting.d

  Log Message:
  -----------
  Merge pull request #4737 from John-Colvin/patch-17

Fix Issue 16413 - multiSort doesn't work with @system comparison function


Compare: https://github.com/dlang/phobos/compare/9abe256cab3f...45eb00fb4d0d