[GHC] #13242: Panic "StgCmmEnv: variable not found" with ApplicativeDo and ExistentialQuantification

[GHC]

#13242: Panic "StgCmmEnv: variable not found" with ApplicativeDo and
ExistentialQuantification
-------------------------------------+-------------------------------------
        Reporter:  ljli              |                Owner:  simonmar
            Type:  bug               |               Status:  closed
        Priority:  highest           |            Milestone:  8.2.1
       Component:  Compiler          |              Version:  8.1
      Resolution:  fixed             |             Keywords:  ApplicativeDo
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by Ben Gamari <ben@…>):

 In [changeset:"af403b2eb50abde6a7992470032d7df5faea043e/ghc" af403b2/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="af403b2eb50abde6a7992470032d7df5faea043e"
 ApplicativeDo: document behaviour with strict patterns (#13875)

 Test Plan: unit tests, built docs

 Reviewers: dfeuer, bgamari, simonpj, austin, erikd

 Subscribers: rwbarton, thomie

 GHC Trac Issues: #13875, #13242

 Differential Revision: https://phabricator.haskell.org/D3691
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13242#comment:22>
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