[Issue 13595] Extend std.algorithm.groupBy to support non-equivalence relations

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=13595

--- Comment #6 from github-bugzilla at puremagic.com ---
Commit pushed to master at https://github.com/D-Programming-Language/phobos

https://github.com/D-Programming-Language/phobos/commit/5986e740873d6af793610381a942df78ab41f137
Merge pull request #2654 from quickfur/issue13595b

Issue 13595: Extend groupBy to handle non-equivalence relations.

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