[GHC] #10533: Typechecker behaves differently on Phab and on Mac

[GHC]

#10533: Typechecker behaves differently on Phab and on Mac
-------------------------------------+-------------------------------------
        Reporter:  goldfire          |                   Owner:
            Type:  bug               |                  Status:  new
        Priority:  normal            |               Milestone:
       Component:  Compiler          |                 Version:  7.11
      Resolution:                    |                Keywords:
Operating System:  MacOS X           |            Architecture:
 Type of failure:  None/Unknown      |  Unknown/Multiple
      Blocked By:                    |               Test Case:
 Related Tickets:                    |                Blocking:
                                     |  Differential Revisions:
-------------------------------------+-------------------------------------

Comment (by rwbarton):

 FWIW that commit validates on my Linux laptop also. Let me know if you
 want me to run any tests here.

 But first I'd rule out explanation like: are you starting from a dirty
 build tree possibly? For example, if you run validate does the test still
 fail?

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10533#comment:2>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler