BIND 10 #2089: RBTree node flags update

[BIND 10 Development]

#2089: RBTree node flags update
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                   Reporter:         |                 Owner:  UnAssigned
  jinmei                             |                Status:  reviewing
                       Type:  task   |             Milestone:
                   Priority:         |  Sprint-20120717
  medium                             |            Resolution:
                  Component:  data   |             Sensitive:  0
  source                             |           Sub-Project:  DNS
                   Keywords:         |  Estimated Difficulty:  5
            Defect Severity:  N/A    |           Total Hours:  0
Feature Depending on Ticket:         |
  scalable inmemory                  |
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
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Changes (by jelte):

 * owner:  jelte => UnAssigned
 * status:  assigned => reviewing


Comment:

 Ready for review.

 First few changes are (for) the addition of the red/black flag, last few
 for the subtree root nodes.

 Didn't really know how to test these outside of adding it to the
 dumpTree() output and checking that, if the reviewer has a good idea, let
 me know :)

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Ticket URL: <http://bind10.isc.org/ticket/2089#comment:4>
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