* A Node can no longer have a referring "." or ".." Entry (except the root
directory), not even temporarily. This rules out cycles when resolving
paths.
* Made the code more robust against missed node monitoring messages. If
an entry is encountered that shouldn't be there, it is removed. As
implemented before, a Node could end up with a NULL referring Entry,
leading to a crash when an Entry that references the Node was moved.
Missing node monitoring messages is actually virtually impossible,
since a dedicated looper does nothing else but pushing those into a
separate queue, but nevertheless Stippi seems to have managed the trick. :-)
git-svn-id: file:///srv/svn/repos/haiku/buildtools/trunk@21307 a95241bf-73f2-0310-859d-f6bbb57e9c96
