[NTFS]

[NTFS]
Bugfixing... Part 10/X:
- Properly compute entry name length in CompareFileName()
- Also, in CompareFileName() properly handle the return of RtlCompareUnicodeString(); this is not RtlEqualUnicodeString()!
- In NtfsLookupFileAt(), don't return an error when we're done walking the path, it's a normal behavior

All these fixes allow our NTFS to go one step farther: it can open directory/files (reading files data remains untested so far) in root and in its subdirs. Which was broken previously.
The said bugfixes in action (and in image): http://www.heisspiter.net/~Pierre/rostests/NTFS_listing_subdir.png

svn path=/trunk/; revision=65041