[GHC] #11541: Type errors sometimes has a lot of irrelevant information

[GHC]

#11541: Type errors sometimes has a lot of irrelevant information
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        Reporter:  augustss          |                Owner:
            Type:  bug               |               Status:  merge
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.8.3
      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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Changes (by simonpj):

 * status:  new => merge


Comment:

 Thanks Johannes, that test case was extremely helpful; it led me straight
 to the bug. The error-message suppression mechanism was all there
 (comment:2), but it wasn't being used properly.

 Simon

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11541#comment:7>
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