This patch adds,

- Fix for a RQG run failure, which avoids passing invalid partition id to
  part_handler->get_dynamic_partition_info().

- Adds more test to help get better gcov report.

- Use of macro OS_PATH_SEPARATOR based in InnoDB code review comment.

- Record result of windows tests main.dd_schema_definition_debug_ci
  main.information_schema_ci.