[GHC] #9173: Better type error messages

[GHC]

#9173: Better type error messages
-------------------------------------+-------------------------------------
        Reporter:  simonpj           |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.8.2
      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:                    |
-------------------------------------+-------------------------------------

Comment (by goldfire):

 Once Phab:D808 gets merged (could be today! but more likely in 2-3),
 printing out the expression that has the bad type will be much easier, as
 I've restructured how that information sloshes around internally. So that
 will be a viable improvement very soon.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9173#comment:16>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler