[GHC] #12409: Unboxed tuples have no type representations

[GHC]

#12409: Unboxed tuples have no type representations
-------------------------------------+-------------------------------------
        Reporter:  bgamari           |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.0.2
       Component:  Compiler          |              Version:  8.0.1
      Resolution:                    |             Keywords:  typeable
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by bgamari):

 On further investigation, my previous hypothesis is completely wrong. The
 problem is that `TyCon.tyConRepName_maybe` does not handle the case of
 `AlgTyCon { algTcParent = UnboxedAlgTyCon }`.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12409#comment:3>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler