github.com/andybalholm/brotli/flate.byLiteral.Swap (method, view implemented interface methods)

one use

	github.com/andybalholm/brotli/flate (current package)
		huffman_code.go#L324: func (s byLiteral) Swap(i, j int) { s[i], s[j] = s[j], s[i] }