[GHC] #7633: Checkable "minimal complete definitions"

[GHC]

#7633: Checkable "minimal complete definitions"
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        Reporter:  shachaf           |            Owner:
            Type:  feature request   |           Status:  patch
        Priority:  normal            |        Milestone:  7.8.1
       Component:  Compiler          |          Version:  7.6.1
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:  #6028
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Comment (by Herbert Valerio Riedel <hvr@…>):

 In [changeset:12a8244b12e38e61c091d38006e9285155a21290/ghc-prim]:
 {{{
 #!CommitTicketReference repository="ghc-prim"
 revision="12a8244b12e38e61c091d38006e9285155a21290"
 Add `{-# MINIMAL #-}` to `class Eq` and `class Ord`

 This makes use of the new compiler checked minimal-complete-defintion
 `{-# MINIMAL #-}` annotation (see #7633 for more details)

 Signed-off-by: Herbert Valerio Riedel <hvr at gnu.org>
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7633#comment:32>
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