[PATCH 8/9] ntoskrnl.exe: Implement ObReferenceObject and ObDereferenceObject.

[Jacek Caban]

NULL checks are meant to prevent regressions in applications trying to 
reference NULL objects returned from stubs.

Signed-off-by: Jacek Caban <jacek(a)codeweavers.com>
---
  dlls/ntoskrnl.exe/ntoskrnl.c | 64 +++++++++++++++++++++---------------
  1 file changed, 37 insertions(+), 27 deletions(-)