Session: Remove/add some forward declarations

src/citra_qt/debugger/wait_tree.h

@@ -18,7 +18,6 @@ class WaitObject;
 class Event;
 class Mutex;
 class Semaphore;
-class Session;
 class Thread;
 class Timer;
 }

src/core/hle/kernel/client_session.cpp

@@ -8,6 +8,7 @@
 #include "core/hle/kernel/errors.h"
 #include "core/hle/kernel/hle_ipc.h"
 #include "core/hle/kernel/server_session.h"
+#include "core/hle/kernel/session.h"
 
 namespace Kernel {
 

src/core/hle/kernel/server_session.h

@@ -9,7 +9,6 @@
 #include "common/assert.h"
 #include "common/common_types.h"
 #include "core/hle/kernel/kernel.h"
-#include "core/hle/kernel/session.h"
 #include "core/hle/kernel/wait_object.h"
 #include "core/hle/result.h"
 #include "core/memory.h"
@@ -19,6 +18,7 @@ namespace Kernel {
 class ClientSession;
 class ClientPort;
 class ServerSession;
+class Session;
 class SessionRequestHandler;
 class Thread;