[GHC] #2110: Rules to eliminate casted id's

[GHC]

#2110: Rules to eliminate casted id's
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        Reporter:  igloo             |            Owner:
            Type:  feature request   |           Status:  patch
        Priority:  lowest            |        Milestone:  7.10.1
       Component:  Compiler          |          Version:  6.8.2
      Resolution:                    |         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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Comment (by Joachim Breitner <mail@…>):

 In [changeset:"377672ae068f6dbfa0354dfab95f41bdd26b0df4/ghc"]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="377672ae068f6dbfa0354dfab95f41bdd26b0df4"
 Test case for RULE map coerce = coerce

 (This tests #2110.)
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/2110#comment:47>
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