const compress/flate.matchType

5 uses

	compress/flate (current package)
		huffman_bit_writer.go#L544: 		if t < matchType {
		huffman_bit_writer.go#L582: 		if t < matchType {
		token.go#L15: 	matchType   = 1 << 30
		token.go#L75: 	return token(matchType + xlength<<lengthShift + xoffset)
		token.go#L84: func (t token) length() uint32 { return uint32((t - matchType) >> lengthShift) }