[clangd] Remove unused field in HandlerRegisterer

[simark]

Summary

Tested by rebuilding.

[simark]

Fix formatting

[malaperle]

LGTM

clangd/ClangdLSPServer.cpp

 
 bool ClangdLSPServer::run(std::istream &In, JSONStreamStyle InputStyle) {
   assert(!IsDone && "Run was called before");
 
   // Set up JSONRPCDispatcher.
   JSONRPCDispatcher Dispatcher([](const json::Expr &Params) {
     replyError(ErrorCode::MethodNotFound, "method not found");
   });
-  registerCallbackHandlers(Dispatcher, Out, /*Callbacks=*/*this);
+  registerCallbackHandlers(Dispatcher, /*Callbacks=*/*this);
 
   // Run the Language Server loop.
   runLanguageServerLoop(In, Out, InputStyle, Dispatcher, IsDone);
 
   // Make sure IsDone is set to true after this method exits to ensure assertion
   // at the start of the method fires if it's ever executed again.
   IsDone = true;
 

clangd/ProtocolHandlers.h

public:
   virtual void onFileEvent(DidChangeWatchedFilesParams &Params) = 0;
   virtual void onCommand(ExecuteCommandParams &Params) = 0;
   virtual void onRename(RenameParams &Parames) = 0;
   virtual void onDocumentHighlight(TextDocumentPositionParams &Params) = 0;
   virtual void onHover(TextDocumentPositionParams &Params) = 0;
   virtual void onChangeConfiguration(DidChangeConfigurationParams &Params) = 0;
 };
 
-void registerCallbackHandlers(JSONRPCDispatcher &Dispatcher, JSONOutput &Out,
+void registerCallbackHandlers(JSONRPCDispatcher &Dispatcher,
                               ProtocolCallbacks &Callbacks);
 
 } // namespace clangd
 } // namespace clang
 
 #endif

clangd/ProtocolHandlers.cpp

Dispatcher.registerHandler(Method, [=](const json::Expr &RawParams) {
         (Callbacks->*Handler)(P);
       } else {
         log("Failed to decode " + Method + " request.");
       }
     });
   }
 
   JSONRPCDispatcher &Dispatcher;
-  JSONOutput *Out;
   ProtocolCallbacks *Callbacks;
 };
 
 } // namespace
 
 void clangd::registerCallbackHandlers(JSONRPCDispatcher &Dispatcher,
-                                      JSONOutput &Out,
                                       ProtocolCallbacks &Callbacks) {
-  HandlerRegisterer Register{Dispatcher, &Out, &Callbacks};
+  HandlerRegisterer Register{Dispatcher, &Callbacks};
 
   Register("initialize", &ProtocolCallbacks::onInitialize);
   Register("shutdown", &ProtocolCallbacks::onShutdown);
   Register("exit", &ProtocolCallbacks::onExit);
   Register("textDocument/didOpen", &ProtocolCallbacks::onDocumentDidOpen);
   Register("textDocument/didClose", &ProtocolCallbacks::onDocumentDidClose);
   Register("textDocument/didChange", &ProtocolCallbacks::onDocumentDidChange);
   Register("textDocument/rangeFormatting",