[GHC] #10658: Regression gadt/termination -O Core Lint errors : in result of Worker Wrapper binds

[GHC]

#10658: Regression gadt/termination -O Core Lint errors : in result of Worker
Wrapper binds
-------------------------------------+-------------------------------------
              Reporter:  thomie      |             Owner:
                  Type:  bug         |            Status:  new
              Priority:  high        |         Milestone:  7.12.1
             Component:  Compiler    |           Version:  7.11
              Keywords:              |  Operating System:  Unknown/Multiple
          Architecture:              |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
             Test Case:              |        Blocked By:
  gadt/termination                   |
              Blocking:              |   Related Tickets:
Differential Revisions:              |
-------------------------------------+-------------------------------------
 See attachment for the result of running `make TEST=termination WAY=optasm
 TEST_HC=ghc-7.11.20150711`. It starts with:

 {{{
 *** Core Lint errors : in result of Worker Wrapper binds ***
 <no location info>: warning:
     In a case alternative: (Equal ww_sRe :: Apply Omega Omega ~# t_asc)
     Non term variable ww_sRe
 *** Offending Program ***
 }}}

 The problem does not occur with ghc-7.10.1.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10658>
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