Userland: Split IPC endpoints into proxies and stubs

This enables support for automatically generating client methods.
With this added the user gets code completion support for all
IPC methods which are available on a connection object.

Userland/Services/AudioServer/ClientConnection.h

@@ -21,7 +21,7 @@ class BufferQueue;
 class Mixer;
 
 class ClientConnection final : public IPC::ClientConnection<AudioClientEndpoint, AudioServerEndpoint>
-    , public AudioServerEndpoint {
+{
     C_OBJECT(ClientConnection)
 public:
     explicit ClientConnection(NonnullRefPtr<Core::LocalSocket>, int client_id, Mixer& mixer);

Userland/Services/Clipboard/ClientConnection.h

@@ -15,8 +15,7 @@ namespace Clipboard {
 
 class ClientConnection final
     : public IPC::ClientConnection<ClipboardClientEndpoint, ClipboardServerEndpoint>
-    , public ClipboardServerEndpoint {
-
+{
     C_OBJECT(ClientConnection);
 
 public:

Userland/Services/ImageDecoder/ClientConnection.h

@@ -17,7 +17,7 @@ namespace ImageDecoder {
 
 class ClientConnection final
     : public IPC::ClientConnection<ImageDecoderClientEndpoint, ImageDecoderServerEndpoint>
-    , public ImageDecoderServerEndpoint {
+{
     C_OBJECT(ClientConnection);
 
 public:

Userland/Services/LaunchServer/ClientConnection.h

@@ -13,7 +13,7 @@
 namespace LaunchServer {
 
 class ClientConnection final : public IPC::ClientConnection<LaunchClientEndpoint, LaunchServerEndpoint>
-    , public LaunchServerEndpoint {
+{
     C_OBJECT(ClientConnection)
 public:
     ~ClientConnection() override;

Userland/Services/LookupServer/ClientConnection.h

@@ -15,8 +15,7 @@ namespace LookupServer {
 
 class ClientConnection final
     : public IPC::ClientConnection<LookupClientEndpoint, LookupServerEndpoint>
-    , public LookupServerEndpoint {
-
+{
     C_OBJECT(ClientConnection);
 
 public:

Userland/Services/NotificationServer/ClientConnection.h

@@ -13,7 +13,7 @@
 namespace NotificationServer {
 
 class ClientConnection final : public IPC::ClientConnection<NotificationClientEndpoint, NotificationServerEndpoint>
-    , public NotificationServerEndpoint {
+{
     C_OBJECT(ClientConnection)
 public:
     ~ClientConnection() override;

Userland/Services/RequestServer/ClientConnection.h

@@ -16,7 +16,7 @@ namespace RequestServer {
 
 class ClientConnection final
     : public IPC::ClientConnection<RequestClientEndpoint, RequestServerEndpoint>
-    , public RequestServerEndpoint {
+{
     C_OBJECT(ClientConnection);
 
 public:

Userland/Services/SymbolServer/ClientConnection.h

@@ -17,7 +17,7 @@ namespace SymbolServer {
 
 class ClientConnection final
     : public IPC::ClientConnection<SymbolClientEndpoint, SymbolServerEndpoint>
-    , public SymbolServerEndpoint {
+{
     C_OBJECT(ClientConnection);
 
 public:

Userland/Services/WebContent/ClientConnection.h

@@ -20,7 +20,7 @@ namespace WebContent {
 
 class ClientConnection final
     : public IPC::ClientConnection<WebContentClientEndpoint, WebContentServerEndpoint>
-    , public WebContentServerEndpoint {
+{
     C_OBJECT(ClientConnection);
 
 public:

Userland/Services/WebSocket/ClientConnection.h

@@ -16,7 +16,7 @@ namespace WebSocket {
 
 class ClientConnection final
     : public IPC::ClientConnection<WebSocketClientEndpoint, WebSocketServerEndpoint>
-    , public WebSocketServerEndpoint {
+{
     C_OBJECT(ClientConnection);
 
 public:

Userland/Services/WindowServer/ClientConnection.h

@@ -29,7 +29,7 @@ class WMClientConnection;
 
 class ClientConnection final
     : public IPC::ClientConnection<WindowClientEndpoint, WindowServerEndpoint>
-    , public WindowServerEndpoint {
+{
     C_OBJECT(ClientConnection)
 public:
     ~ClientConnection() override;

Userland/Services/WindowServer/WMClientConnection.h

@@ -16,7 +16,7 @@ namespace WindowServer {
 
 class WMClientConnection final
     : public IPC::ClientConnection<WindowManagerClientEndpoint, WindowManagerServerEndpoint>
-    , public WindowManagerServerEndpoint {
+{
     C_OBJECT(WMClientConnection)
 
 public: