update lens-9999 deps
dev-haskell/x11: revbump due to EAPI=5 update (thanks to kini)

Likeli a cause of constant rebuilds issue:
    http://bugs.funtoo.org/browse/FL-332

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
dev-lang/ghc: allow some debugging flags to be passed to ghc

It might break splitter due to nonstandard debug info generation.

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