message: tests: Add more move tests
  Add a test that checks that static buffer pointer was moved correctly
  by checking if offset_debug still works.
diff: @@ -1726,4 +1726,13 @@ TEST(document_move_large)
  CHECK(!other.first_child());
  }
  +
  +TEST_XML(document_move_buffer, "<node1/><node2/>")
  +{
  + CHECK(doc.child(STR("node2")).offset_debug() == 9);
  +
  + xml_document other = std::move(doc);
  +
  + CHECK(other.child(STR("node2")).offset_debug() == 9);
  +}
  #endif
  