Kernel: Use Forward.h headers more

Kernel/Forward.h

@@ -12,16 +12,23 @@ class BlockDevice;
 class CharacterDevice;
 class CoreDump;
 class Custody;
+class DevFSDeviceInode;
+class DevFSDirectoryInode;
+class DevFSInode;
+class DevFSPtsDirectoryInode;
+class DevFSRootDirectoryInode;
+class Device;
 class Device;
 class DiskCache;
 class DoubleBuffer;
 class File;
 class FileDescription;
+class FileSystem;
 class FutexQueue;
 class IPv4Socket;
 class Inode;
+class Inode;
 class InodeIdentifier;
-class SharedInodeVMObject;
 class InodeWatcher;
 class KBuffer;
 class KResult;
@@ -29,36 +36,55 @@ class LocalSocket;
 class Lock;
 class MappedROM;
 class MasterPTY;
+class Mount;
 class PageDirectory;
 class PerformanceEventBuffer;
 class PhysicalPage;
 class PhysicalRegion;
+class ProcFS;
+class ProcFSBusDirectory;
+class ProcFSDirectoryInode;
+class ProcFSExposedComponent;
+class ProcFSExposedDirectory;
+class ProcFSInode;
+class ProcFSProcessInformation;
+class ProcFSRootDirectory;
+class ProcFSSystemBoolean;
+class ProcFSSystemDirectory;
 class Process;
 class ProcessGroup;
-class ThreadTracer;
 class Range;
 class RangeAllocator;
+class RecursiveSpinLock;
 class Region;
 class Scheduler;
 class SchedulerPerProcessorData;
+class SharedInodeVMObject;
 class Socket;
 class Space;
-template<typename BaseType>
-class SpinLock;
-class RecursiveSpinLock;
-template<typename LockType>
-class ScopedSpinLock;
+class SysFS;
+class SysFSDirectoryInode;
+class SysFSInode;
 class TCPSocket;
 class TTY;
 class Thread;
+class ThreadTracer;
 class UDPSocket;
 class UserOrKernelBuffer;
-class VirtualFileSystem;
 class VMObject;
+class VirtualFileSystem;
+class VirtualFileSystem;
 class WaitQueue;
 class WorkQueue;
 
+template<typename BaseType>
+class SpinLock;
+template<typename LockType>
+class ScopedSpinLock;
 template<typename T>
 class KResultOr;
 
+struct InodeMetadata;
+struct TrapFrame;
+
 }