[GHC] #15222: T14547 is broken

[GHC]

#15222: T14547 is broken
-------------------------------------+-------------------------------------
           Reporter:  bgamari        |             Owner:  (none)
               Type:  bug            |            Status:  new
           Priority:  normal         |         Milestone:  8.6.1
          Component:  Compiler       |           Version:  8.4.3
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
-------------------------------------+-------------------------------------
 It fails with:
 {{{
 10      +
 11      +T14547.hs:14:9: warning: [-Wincomplete-patterns (in -Wextra)]
 12      +    Pattern match(es) are non-exhaustive
 13      +    In an equation for ‘foo’: Patterns not matched: []
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15222>
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