[GHC] #10004: rec {} causes "head:empty list" exception

[GHC]

#10004: rec {} causes "head:empty list" exception
-------------------------------------+-------------------------------------
        Reporter:  alanz             |                   Owner:
            Type:  bug               |                  Status:  merge
        Priority:  normal            |               Milestone:  7.10.1
       Component:  Compiler          |                 Version:  7.11
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  None/Unknown      |  Unknown/Multiple
      Blocked By:                    |               Test Case:
 Related Tickets:                    |  mdo/should_compile/T10004
                                     |                Blocking:
                                     |  Differential Revisions:
-------------------------------------+-------------------------------------
Changes (by simonpj):

 * status:  new => merge
 * testcase:   => mdo/should_compile/T10004
 * milestone:   => 7.10.1


Comment:

 Good point.  Fixed, thank you

 Simon

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10004#comment:2>
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