dev-haskell/concatenative: new package (a depend for elm)

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
dev-haskell/indents: new package (a depend for elm)

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
dev-haskell/union-find: new package (a depend for elm)

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
dev-haskell/elm: new package (asked by int-index)

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>