[GHC] #12146: syntax repair suggestion is too eager to suggest TemplateHaskell

[GHC]

#12146: syntax repair suggestion is too eager to suggest TemplateHaskell
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        Reporter:  j.waldmann        |                Owner:
            Type:  feature request   |               Status:  patch
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.0.1
      Resolution:                    |             Keywords:  newcomer
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Incorrect         |  Unknown/Multiple
  warning at compile-time            |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #7396             |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by adityadivekar):

 So in some cases, as described in #7396, it is desirable to have the
 message suggesting TemplateHaskell.

 The expected stderr for test cases T6106 and T1914 in `/ghci/scripts` can
 be modified as per the suggestion in the patch I uploaded. But the script
 for test T4042 in `/rename/should_fail`clearly expects the TemplateHaskell
 suggestion in stderr (as mentioned in the comments in the test case
 script). So changing the message would invalidate the test case.

 I'm not sure how to handle this conflict.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12146#comment:5>
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