[clangd] Add some trace::Spans. NFC

llvm-svn: 340815

clang-tools-extra/clangd/ClangdServer.cpp

@@ -495,6 +495,7 @@ void ClangdServer::consumeDiagnostics(PathRef File, DocVersion Version,
 }
 
 tooling::CompileCommand ClangdServer::getCompileCommand(PathRef File) {
+  trace::Span Span("GetCompileCommand");
   llvm::Optional<tooling::CompileCommand> C = CDB.getCompileCommand(File);
   if (!C) // FIXME: Suppress diagnostics? Let the user know?
     C = CDB.getFallbackCommand(File);

clang-tools-extra/clangd/TUScheduler.cpp

@@ -417,6 +417,7 @@ void ASTWorker::update(
     // Note *AST can be still be null if buildAST fails.
     if (*AST) {
       OnUpdated((*AST)->getDiagnostics());
+      trace::Span Span("Running main AST callback");
       Callbacks.onMainAST(FileName, **AST);
       DiagsWereReported = true;
     }