Replace usages of B_FILE_NOT_FOUND in non-BeOS-API code.

B_FILE_NOT_FOUND was deprecated in BeOS R5 in favor of B_ENTRY_NOT_FOUND,
but it remained in Haiku and was never removed even conditionally, so
we have accumulated a number of usages of it.

This commit changes all the usages of it in new code, applications,
or anything else that BeOS applications will otherwise never see,
and so should be relatively safe.

nfs4: Fix CID 1108338: Fix memory leak

nfs4: Fix CID 991752: remove unnecessary return

nfs4: Fix error checking in NFS4Server::_Renewal()

This fixes CID 990985.

nfs4: Fix connection recovery code

nfs4: Use DoublyLinkedList instead of custom FileSystem list implementation

nfs4: Add numerous assertion checks

nfs4, dns_resolver: fix numerous style violations

nfs4: Make the client more configurable

nfs4: Fix gcc4 warnings

nfs4: Check for semaphore creation errors in ConnectionBase classes

nfs4: Fix server reboot recovery

nfs4: Add support for CB_GETATTR

nfs4: Recall all delegations when callback path is down

nfs4: Add asynchronous work queue

nfs4: Return delegation before open upgrade

nfs4: Reclaim delegations after server reboot

nfs4: Return delegations when asked to

nfs4: Use one open state per inode

nfs4: Do not open too much files on server

nfs4: Fix issues with renewal thread

nfs4: Rename Filehandle to FileHandle and Filesystem to FileSystem

nfs4: Use semaphore to cancel threads instead of interrupt_thread()

nfs4: Use FileInfo instead of filehandle to identify a file

nfs4: Add proper lock owners management

nfs4: Solve confusion between bigtime_t and seconds

nfs4: Add full support for lease migration

nfs4: Use correct mode in share reclaimation

nfs4: Filesystem is responsible for its opened files

nfs4: Use MutexLocker for locking

nfs4: Add support for file locking

nfs4: Partial handling of NFS4ERR_LEASE_MOVED error

nfs4: Improve handling errors in NFS replies

nfs4: Fix OPEN and CLOSE sequence numbers

nfs4: Let opened files survive server reboot

nfs4: Renew all owned and used leases

nfs4: Add per server NFS4 objects

RPC::Server is now able to store RPC programs data.
NFS4Server objects are currently used mainly for managing client id.

nfs4: Fix CID 1108338: Fix memory leak

nfs4: Fix CID 991752: remove unnecessary return

nfs4: Fix error checking in NFS4Server::_Renewal()

This fixes CID 990985.

nfs4: Fix connection recovery code

nfs4: Use DoublyLinkedList instead of custom FileSystem list implementation

nfs4: Add numerous assertion checks

nfs4, dns_resolver: fix numerous style violations

nfs4: Make the client more configurable

nfs4: Fix gcc4 warnings

nfs4: Check for semaphore creation errors in ConnectionBase classes

nfs4: Fix server reboot recovery

nfs4: Add support for CB_GETATTR

nfs4: Recall all delegations when callback path is down

nfs4: Add asynchronous work queue

nfs4: Return delegation before open upgrade

nfs4: Reclaim delegations after server reboot

nfs4: Return delegations when asked to

nfs4: Use one open state per inode

nfs4: Do not open too much files on server

nfs4: Fix issues with renewal thread

nfs4: Rename Filehandle to FileHandle and Filesystem to FileSystem

nfs4: Use semaphore to cancel threads instead of interrupt_thread()

nfs4: Use FileInfo instead of filehandle to identify a file

nfs4: Add proper lock owners management

nfs4: Solve confusion between bigtime_t and seconds

nfs4: Add full support for lease migration

nfs4: Use correct mode in share reclaimation

nfs4: Filesystem is responsible for its opened files

nfs4: Use MutexLocker for locking

nfs4: Add support for file locking

nfs4: Partial handling of NFS4ERR_LEASE_MOVED error

nfs4: Improve handling errors in NFS replies

nfs4: Fix OPEN and CLOSE sequence numbers

nfs4: Let opened files survive server reboot

nfs4: Renew all owned and used leases

nfs4: Add per server NFS4 objects

RPC::Server is now able to store RPC programs data.
NFS4Server objects are currently used mainly for managing client id.