[GHC] #4437: unregistered language extensions

[GHC]

#4437: unregistered language extensions
-------------------------------------+---------------------------------
        Reporter:  duncan            |         Owner:
            Type:  bug               |        Status:  closed
        Priority:  normal            |     Milestone:
       Component:  Compiler          |       Version:
      Resolution:  fixed             |      Keywords:
Operating System:  Unknown/Multiple  |  Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |     Test Case:  T4437
      Blocked By:                    |      Blocking:
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Comment (by Ben Gamari <ben@…>):

 In [changeset:"7861a22561846eef9a6415a93d79e121dca9c05f/ghc"
 7861a225/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="7861a22561846eef9a6415a93d79e121dca9c05f"
 Add a note describing the protocol for adding a language extension

 Reviewers: hvr, thomie, austin

 Reviewed By: austin

 Subscribers: duncan

 Differential Revision: https://phabricator.haskell.org/D1741

 GHC Trac Issues: #8176, #4437
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/4437#comment:3>
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