[GHC] #10486: Allow addTopDecls to create annotations

[GHC]

#10486: Allow addTopDecls to create annotations
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        Reporter:  spinda            |                   Owner:  spinda
            Type:  feature request   |                  Status:  closed
        Priority:  normal            |               Milestone:
       Component:  Template Haskell  |                 Version:  7.10.1
      Resolution:  fixed             |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |               Test Case:
                                     |  testsuite/tests/annotations/should_compile/th/
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:  Phab:D1201
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Comment (by goldfire):

 See #10853, a new ticket meant to track general improvements to
 `addTopDecls`.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10486#comment:7>
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