Fix issue 4336, move-update needs to leave base-deleted rows.

* subversion/libsvn_wc/wc-queries.sql
  (STMT_DELETE_NO_LOWER_LAYER, STMT_REPLACE_WITH_BASE_DELETED): New.

* subversion/libsvn_wc/wc_db_update_move.c
  (tc_editor_delete): Use new queries when a lower layer is present.

* subversion/tests/libsvn_wc/op-depth-test.c
  (test_funcs): Mark move_retract PASS.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1456577 13f79535-47bb-0310-9956-ffa450edef68