Add new XFailing test for issue #3432.
Add new XFailing test for issue #3432.

* subversion/tests/cmdline/merge_tests.py
  (set_up_natural_history_gap): New, does some common test setup for
  related tests.
  (dont_merge_gaps_in_history): Use new setup helper, no functional change.
  (handle_gaps_in_implicit_mergeinfo): New test for issue #3432.
  (test_list): Add XFailing handle_gaps_in_implicit_mergeinfo.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@878216 13f79535-47bb-0310-9956-ffa450edef68

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