Fix a case of using pool memory after a clear, tracked down with valgrind.  This was causing switch_tests.py 2, 4 and 6 to fail, when run over ra_svn with APR pool debugging enabled.
Fix a case of using pool memory after a clear, tracked down with
valgrind.  This was causing switch_tests.py 2, 4 and 6 to fail,
when run over ra_svn with APR pool debugging enabled.

* subversion/libsvn_repos/reporter.c (add_to_path_map): Allocate hash
  key from hash pool.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@844778 13f79535-47bb-0310-9956-ffa450edef68

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