Changed xmlXPathCollectAndTest() to use xmlXPathNodeSetAddNs() when adding

* xpath.c: Changed xmlXPathCollectAndTest() to use
  xmlXPathNodeSetAddNs() when adding a ns-node in case of
  NODE_TEST_TYPE (the ns-node was previously added plainly
  to the list). Since for NODE_TEST_ALL and NODE_TEST_NAME
  this specialized ns-addition function was already used,
  I assume it was missed to be used with NODE_TEST_TYPE.
2 files changed