[GHC] #7667: Template Haskell fails to recognize type operator/function +

[GHC]

#7667: Template Haskell fails to recognize type operator/function +
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        Reporter:  andygill                   |            Owner:
            Type:  bug                        |           Status:  new
        Priority:  normal                     |        Milestone:  7.8.1
       Component:  Template Haskell           |          Version:  7.6.2
      Resolution:                             |         Keywords:
Operating System:  Unknown/Multiple           |     Architecture:
 Type of failure:  GHC rejects valid program  |  Unknown/Multiple
       Test Case:  th/T7667                   |       Difficulty:  Unknown
        Blocking:                             |       Blocked By:
                                              |  Related Tickets:
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Changes (by goldfire):

 * status:  closed => new
 * resolution:  fixed =>


Comment:

 I would like to reinstate this check, having just spent several hours
 trying to track down a place where I had used `VarE` in some code where I
 should have used `ConE`. If the namespace check had been on, the error
 would have been very easy to spot. Instead, I just got "out of scope"
 errors for things that clearly ''were'' in scope. (Turned out, I had GHC
 looking in the wrong scope.)

 A smaller change than the one Simon proposed (that is, "remove the check")
 would be just to remove the requirement for colons at the beginning of a
 type symbol. Is there anything else that should be changed here?

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7667#comment:9>
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