Move cond member from _Predicate to Skip class.
Move cond member from _Predicate to Skip class.

* subversion/tests/cmdline/svntest/testcase.py (_Predicate.__init__):
  Don't initialize cond at all in _Predicate class.

  (_Predicate.run): Don't check cond in _Predicate class.

  (Skip.run): Check cond member here.  If it is set, raise a Skip
  exception; if not, invoke the inherited run() method.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@859323 13f79535-47bb-0310-9956-ffa450edef68

wbond/subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion