[GHC] #9683: ghc: panic! (the 'impossible' happened) [Cant do annotations without GHCi]

[GHC]

#9683: ghc: panic! (the 'impossible' happened) [Cant do annotations without GHCi]
-------------------------------------+-------------------------------------
              Reporter:  jeffmaner   |            Owner:
                  Type:  bug         |           Status:  closed
              Priority:  normal      |        Milestone:
             Component:  Compiler    |          Version:  7.4.1
            Resolution:  duplicate   |         Keywords:
      Operating System:  Linux       |     Architecture:  arm
       Type of failure:              |       Difficulty:  Unknown
  None/Unknown                       |       Blocked By:
             Test Case:              |  Related Tickets:
              Blocking:              |  #7504,#7824,#8212,#9361
Differential Revisions:              |
-------------------------------------+-------------------------------------
Changes (by thomie):

 * status:  new => closed
 * resolution:   => duplicate
 * related:   => #7504,#7824,#8212,#9361


Comment:

 Sorry to hear you ran into this problem. This has been fixed in 7.4.2
 (ticket #5839), so you could try upgrading:
 https://www.haskell.org/ghc/docs/7.4.2/html/users_guide/release-7-4-2.html

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9683#comment:1>
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