[GHC] #8660: unexpected parsing error, "in" is treated as reserved word in type class constraints

[GHC]

#8660: unexpected parsing error, "in" is treated as reserved word in type class
constraints
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        Reporter:  carter             |            Owner:
            Type:  bug                |           Status:  closed
        Priority:  normal             |        Milestone:
       Component:  Compiler (Parser)  |          Version:  7.7
      Resolution:  invalid            |         Keywords:
Operating System:  Unknown/Multiple   |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown       |       Difficulty:  Unknown
       Test Case:                     |       Blocked By:
        Blocking:                     |  Related Tickets:
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Changes (by simonpj):

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


Comment:

 Well, for better or worse, `in` is a keyword: see the
 [http://www.haskell.org/onlinereport/haskell2010/haskellch2.html#x7-160002.2
 language definition].  Some words like `hiding` have special significance
 only in particular places, but `in` isn't one of them.

 Simon

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8660#comment:1>
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