add client_name field

lldb/include/lldb/Core/Telemetry.h

@@ -98,6 +98,7 @@ struct LLDBBaseTelemetryInfo : public llvm::telemetry::TelemetryInfo {
 };
 
 struct ClientInfo : public LLDBBaseTelemetryInfo {
+  std::string client_name;
   std::string client_data;
   std::optional<std::string> error_msg;
 

lldb/source/Core/Telemetry.cpp

@@ -63,6 +63,7 @@ void LLDBBaseTelemetryInfo::serialize(Serializer &serializer) const {
 void ClientInfo::serialize(Serializer &serializer) const {
   LLDBBaseTelemetryInfo::serialize(serializer);
   serializer.write("client_data", client_data);
+  serializer.write("client_name", client_name);
   if (error_msg.has_value())
     serializer.write("error_msg", error_msg.value());
 }
@@ -141,6 +142,13 @@ void TelemetryManager::DispatchClientTelemetry(
 
   auto *dict = entry.GetObjectSP()->GetAsDictionary();
 
+  llvm::StringRef client_name;
+  if (dict->GetValueForKeyAsString("client_name", client_name))
+    client_info.client_name = client_name.str();
+  else
+    LLDB_LOG(GetLog(LLDBLog::Object),
+             "Cannot determine client_name from client-telemetry entry");
+
   llvm::StringRef client_data;
   if (dict->GetValueForKeyAsString("client_data", client_data))
     client_info.client_data = client_data.str();

lldb/tools/lldb-dap/DAP.cpp

@@ -673,6 +673,7 @@ void DAP::SetTarget(const lldb::SBTarget target) {
 
 bool DAP::HandleObject(const protocol::Message &M) {
   TelemetryDispatcher dispatcher(&debugger);
+  dispatcher.Set("client_name", "DAP");
   if (const auto *req = std::get_if<protocol::Request>(&M)) {
     auto handler_pos = request_handlers.find(req->command);
     dispatcher.Set("client_data",