message: Create TF op events using the last HLO op name element.
diff: @@ -153,12 +153,12 @@ void DeriveEventsFromAnnotations(const SymbolResolver& symbol_resolver,
  DCHECK(!hlo_op_name.empty());
  hlo_ops.ExpandOrAddEvent(*plane.GetOrCreateEventMetadata(hlo_op_name),
  event, group_id, level);
  - auto tf_op_name = symbol_resolver(hlo_module_name, hlo_op_name);
  + ++level;
  + }
  + auto tf_op_name = symbol_resolver(hlo_module_name, hlo_op_names.back());
  if (!tf_op_name.empty()) {
  tf_ops.ExpandOrAddEvent(*plane.GetOrCreateEventMetadata(tf_op_name),
  - event, group_id, level);
  - }
  - ++level;
  + event, group_id);
  }
  } else if (!tf_op_fullname.empty()) { // GPU kernel not compiled by XLA
  tf_ops.ExpandOrAddEvent(*plane.GetOrCreateEventMetadata(tf_op_fullname),
  