/usr/lib/ is in libghc-test-framework-quickcheck2-prof 0.2.12-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/haskell-packages/
/usr/lib/haskell-packages/ghc/
/usr/lib/haskell-packages/ghc/lib/
/usr/lib/haskell-packages/ghc/lib/test-framework-quickcheck2-0.2.12/
/usr/lib/haskell-packages/ghc/lib/test-framework-quickcheck2-0.2.12/ghc-7.4.1/
/usr/lib/haskell-packages/ghc/lib/test-framework-quickcheck2-0.2.12/ghc-7.4.1/Test/
/usr/lib/haskell-packages/ghc/lib/test-framework-quickcheck2-0.2.12/ghc-7.4.1/Test/Framework/
/usr/lib/haskell-packages/ghc/lib/test-framework-quickcheck2-0.2.12/ghc-7.4.1/Test/Framework/Providers//
/usr/lib/haskell-packages/ghc/lib/test-framework-quickcheck2-0.2.12/ghc-7.4.1/Test/Framework/Providers/QuickCheck2.p_hi
/usr/lib/haskell-packages/ghc/lib/test-framework-quickcheck2-0.2.12/ghc-7.4.1/libHStest-framework-quickcheck2-0.2.12_p.a