Have Progress message updates include their messages when sent over DAP

Author: Jlalond

lldb/tools/lldb-dap/ProgressEvent.cpp

@@ -117,6 +117,10 @@ json::Value ProgressEvent::ToJSON() const {
     body.try_emplace("cancellable", false);
   }
 
+  if (m_event_type == progressUpdate) {
+    EmplaceSafeString(body, "message", m_message);
+  }
+
   std::string timestamp(llvm::formatv("{0:f9}", m_creation_time.count()));
   EmplaceSafeString(body, "timestamp", timestamp);
 
@@ -164,10 +168,11 @@ const ProgressEvent &ProgressEventManager::GetMostRecentEvent() const {
   return m_last_update_event ? *m_last_update_event : m_start_event;
 }
 
-void ProgressEventManager::Update(uint64_t progress_id, uint64_t completed,
-                                  uint64_t total) {
-  if (std::optional<ProgressEvent> event = ProgressEvent::Create(
-          progress_id, std::nullopt, completed, total, &GetMostRecentEvent())) {
+void ProgressEventManager::Update(uint64_t progress_id, const char *message,
+                                  uint64_t completed, uint64_t total) {
+  if (std::optional<ProgressEvent> event =
+          ProgressEvent::Create(progress_id, StringRef(message), completed,
+                                total, &GetMostRecentEvent())) {
     if (event->GetEventType() == progressEnd)
       m_finished = true;
 
@@ -227,7 +232,7 @@ void ProgressEventReporter::Push(uint64_t progress_id, const char *message,
       m_unreported_start_events.push(event_manager);
     }
   } else {
-    it->second->Update(progress_id, completed, total);
+    it->second->Update(progress_id, message, completed, total);
     if (it->second->Finished())
       m_event_managers.erase(it);
   }

lldb/tools/lldb-dap/ProgressEvent.h

@@ -99,7 +99,8 @@ class ProgressEventManager {
 
   /// Receive a new progress event for the start event and try to report it if
   /// appropriate.
-  void Update(uint64_t progress_id, uint64_t completed, uint64_t total);
+  void Update(uint64_t progress_id, const char *message, uint64_t completed,
+              uint64_t total);
 
   /// \return
   ///     \b true if a \a progressEnd event has been notified. There's no