Log GetObjectName or the Object filename, whichever is available.

Author: adrian-prantl

lldb/source/Plugins/LanguageRuntime/Swift/SwiftLanguageRuntime.cpp

@@ -886,12 +886,16 @@ bool SwiftLanguageRuntimeImpl::AddModuleToReflectionContext(
     if (obj_file->GetType() != ObjectFile::eTypeJIT)
       LLDB_LOG(GetLog(LLDBLog::Types),
                "{0}: failed to get start address for \"{1}\".", __FUNCTION__,
-               module_sp->GetObjectName());
+               module_sp->GetObjectName()
+                   ? module_sp->GetObjectName()
+                   : obj_file->GetFileSpec().GetFilename());
     return false;
   }
   bool found = HasReflectionInfo(obj_file);
   LLDB_LOG(GetLog(LLDBLog::Types), "{0} reflection metadata in \"{1}\"",
-            found ? "Adding" : "No", module_sp->GetObjectName());
+           found ? "Adding" : "No",
+           module_sp->GetObjectName() ? module_sp->GetObjectName()
+                                      : obj_file->GetFileSpec().GetFilename());
   if (!found)
     return true;