[GHC] #6018: Injective type families

[GHC]

#6018: Injective type families
-------------------------------------+-------------------------------------
        Reporter:  lunaris           |                   Owner:  jstolarek
            Type:  feature request   |                  Status:  new
        Priority:  normal            |               Milestone:  7.12.1
       Component:  Compiler          |                 Version:  7.4.1
      Resolution:                    |                Keywords:
                                     |  TypeFamilies, Injective
Operating System:  Unknown/Multiple  |            Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:  #4259             |  Differential Revisions:  Phab:D202
-------------------------------------+-------------------------------------

Comment (by Jan Stolarek <jan.stolarek@…>):

 In [changeset:"374457809de343f409fbeea0a885877947a133a2/ghc"
 37445780/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="374457809de343f409fbeea0a885877947a133a2"
 Injective type families

 For details see #6018, Phab:D202 and the wiki page:

 https://ghc.haskell.org/trac/ghc/wiki/InjectiveTypeFamilies

 This patch also wires-in Maybe data type and updates haddock submodule.

 Test Plan: ./validate

 Reviewers: simonpj, goldfire, austin, bgamari

 Subscribers: mpickering, bgamari, alanz, thomie, goldfire, simonmar,
              carter

 Differential Revision: https://phabricator.haskell.org/D202

 GHC Trac Issues: #6018
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/6018#comment:111>
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