[GHC] #10823: Don't mark functions with annotations as dead

[GHC]

#10823: Don't mark functions with annotations as dead
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        Reporter:  spinda            |                   Owner:
            Type:  feature request   |                  Status:  new
        Priority:  normal            |               Milestone:  7.12.1
       Component:  Template Haskell  |                 Version:  7.10.2
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:
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Comment (by rwbarton):

 I don't really understand why "Don't mark functions with annotations as
 dead" is sensible behavior, given the totally general-purpose nature of
 annotations. For example if I used a plugin that uses annotations in one
 of the ways mentioned on the Wiki page

 * Store extra information relevant to a plugin but which is added by that
 plugin itself, such as a strictness analysis plugin that adds a demand
 signature to functions, which can be inspected later on by the same plugin
 when it comes to compile modules that depend on that one

 I wouldn't expect or want every function to be kept live as a side effect.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10823#comment:11>
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