[GHC] #11019: ApiAnnotations: Make all RdrName occurences Located

[GHC]

#11019: ApiAnnotations: Make all RdrName occurences Located
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        Reporter:  alanz             |                Owner:  alanz
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.0.1
       Component:  Compiler          |              Version:  7.10.2
      Resolution:                    |             Keywords:
                                     |  ApiAnnotations
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by alanz):

 It is technically redundant in that with some manipulation the location
 can be retrieved.

 But it causes the mapping process to be much more complex than it needs to
 be when manipulating the AST for source level changes.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11019#comment:2>
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