[clangd] Format changes produced by rename

clang-tools-extra/trunk/clangd/ClangdServer.cpp

void ClangdServer::rename(PathRef File, Position Pos, llvm::StringRef NewName,
   auto Action = [Pos](Path File, std::string NewName,
                       Callback<std::vector<TextEdit>> CB,
                       llvm::Expected<InputsAndAST> InpAST) {
     if (!InpAST)
       return CB(InpAST.takeError());
     auto Changes = renameWithinFile(InpAST->AST, File, Pos, NewName);
     if (!Changes)
       return CB(Changes.takeError());
+
+    auto Style = getFormatStyleForFile(File, InpAST->Inputs.Contents,
+                                       InpAST->Inputs.FS.get());
+    if (auto Formatted =
+            cleanupAndFormat(InpAST->Inputs.Contents, *Changes, Style))
+      *Changes = std::move(*Formatted);
+    else
+      elog("Failed to format replacements: {0}", Formatted.takeError());
+
     std::vector<TextEdit> Edits;
     for (const auto &Rep : *Changes)
       Edits.push_back(replacementToEdit(InpAST->Inputs.Contents, Rep));
     return CB(std::move(Edits));
   };
 
   WorkScheduler.runWithAST(
       "Rename", File, Bind(Action, File.str(), NewName.str(), std::move(CB)));