BIND 10 #2302: bugs in src/lib/cc/data.h (Element::find does not return value and getValue does not work for ConstElementPtr)

[BIND 10 Development]

#2302: bugs in src/lib/cc/data.h (Element::find does not return value and getValue
does not work for ConstElementPtr)
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            Reporter:  fujiwara      |                        Owner:
                Type:  defect        |                       Status:  new
            Priority:  medium        |                    Milestone:  New
           Component:  Inter-module  |  Tasks
  communication                      |                     Keywords:
           Sensitive:  0             |              Defect Severity:  N/A
         Sub-Project:  Core          |  Feature Depending on Ticket:
Estimated Difficulty:  0             |          Add Hours to Ticket:  0
         Total Hours:  0             |                    Internal?:  0
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 Two bugs in src/lib/cc/data.h

 1. Element::find() does not return value because its argument is not a
 reference.
 2. getValue() member functions does not work for ConstElementPointer
 because getValue() member functions are not specified as const.

 tests and fixes are attached.

 Aharen found these bugs.

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Ticket URL: <http://bind10.isc.org/ticket/2302>
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