loads := make([]*Value, n, 8)
	for i := int64(0); i < n; i++ {
		loads[i] = r[i].load
	}
	loadBlock := mergePoint(root.Block, loads...)
	if loadBlock == nil {
		return false
	}
	// Find a source position to use.
	pos := src.NoXPos
	for _, load := range loads {
		if load.Block == loadBlock {
			pos = load.Pos
			break
		}
	}
	if pos == src.NoXPos {
		return false
	}

//
//	uint(lengthOfMessage) Message
func (deb *debugger) delimitedMessage(indent tab) bool {
	for {
		n := deb.loadBlock(true)
		if n < 0 {
			return false
		}
		deb.dump("Delimited message of length %d", n)
		deb.message(indent)
	}
	return true
}

// loadBlock preps us to read a message
// of the length specified next in the input. It returns
// the length of the block. The argument tells whether