func splitTrace(parsed *parsedTrace) ([]traceviewer.Range, error) {
	// TODO(mknyszek): Split traces by generation by doing a quick first pass over the
	// trace to identify all the generation boundaries.
	s, c := traceviewer.SplittingTraceConsumer(100 << 20) // 100 MiB
	if err := generateTrace(parsed, defaultGenOpts(), c); err != nil {
		return nil, err
	}
	return s.Ranges, nil
}

func debugProcessedEvents(trc io.Reader) error {