[GHC] #3370: Put DiffArray in its own diffarray package

[GHC]

#3370: Put DiffArray in its own diffarray package
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  Reporter:  igloo              |          Owner:                  
      Type:  proposal           |         Status:  new             
  Priority:  normal             |      Milestone:  _|_             
 Component:  libraries (other)  |        Version:  6.10.2          
  Severity:  normal             |       Keywords:                  
Difficulty:  Unknown            |       Testcase:                  
        Os:  Unknown/Multiple   |   Architecture:  Unknown/Multiple
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 !DiffArray currently has serious performance problems (see #2727), and is
 not currently being actively maintained. However, as part of the corelib
 `array` it gives the impression that it is a "blessed" library.

 I propose that we split !DiffArray off into its own `diffarray` package.
 This also has the advantage that it can then be maintained by a separate
 maintainer, if someone is interested, and it will be decoupled from GHC's
 major release schedule.

 Deadline: 26 July (2 weeks).

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3370>
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