[NPFS-NEW]: Fix pool corruption and crashing bugs in NpPeek, which was using sizeof instead of FIELD_OFFSET.
[NPFS-NEW]: Actually implement NpCancelWaiter instead of making it ASSERT.
[NPFS-NEW]: Critical fixes to NpAddWaiter and NpWaitForNamedPipe to fix logic flaws.
NPFS-NEW now behaves without any visible regressions, and exhibits only 2 failures in the kernel32 pipe winetest -- vs 120+ failures with the current NPFS driver. It has 0 ntdll pipe failures, and 0 kmtest pipe failures.
svn path=/trunk/; revision=60070