[GHC] #10088: Broken link in Data.Ix documentation

[GHC]

#10088: Broken link in Data.Ix documentation
-------------------------------------+-------------------------------------
              Reporter:  dfeuer      |             Owner:  ekmett
                  Type:  bug         |            Status:  new
              Priority:  normal      |         Milestone:  7.10.1
             Component:  Core        |           Version:  7.11
  Libraries                          |  Operating System:  Unknown/Multiple
              Keywords:              |   Type of failure:  Documentation
          Architecture:              |  bug
  Unknown/Multiple                   |        Blocked By:
             Test Case:              |   Related Tickets:
              Blocking:              |
Differential Revisions:              |
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 The Haddock documentation for `Data.Ix` includes the following line:

       For single-constructor datatypes, the derived instance declarations
 are as shown for tuples in Figure 1
 http://www.haskell.org/onlinelibrary/ix.html#prelude-index.

 This link is dead.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10088>
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