var unicode.Katakana2 uses
unicode (current package)
tables.go#L3864: "Katakana": Katakana,
tables.go#L5894: Katakana = _Katakana // Katakana is the set of Unicode characters in script Katakana.
The pages are generated with Goldsv0.7.6. (GOOS=linux GOARCH=amd64)