trace.go
func (t *trace) SetTraceInfo(traceID uint64, spanID uint64) {
	t.trace.SetTraceInfo(traceID, spanID)
}
func (t *trace) SetTraceInfo(traceID uint64, spanID uint64) {
	t.trace.SetTraceInfo(traceID, spanID)
}
// SetTraceInfo sets the trace info for the trace.
// This is currently unused.