[GHC] #13770: HEAD: Type mentioned in error won't show up in pattern signature

[GHC]

#13770: HEAD: Type mentioned in error won't show up in pattern signature
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        Reporter:  heisenbug         |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.3
      Resolution:                    |             Keywords:
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 goldfire):

 Just took a quick look: this is not just `-fprint-explicit-runtime-reps`,
 which is what I thought. Possibly a tidying error?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13770#comment:1>
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