New expressions: yi, yi contrib and dependencies

pkgs/development/libraries/haskell/concreteTyperep/default.nix

@@ -0,0 +1,18 @@
+{ cabal, binary, hashable, QuickCheck, testFramework
+, testFrameworkQuickcheck2
+}:
+
+cabal.mkDerivation (self: {
+  pname = "concrete-typerep";
+  version = "0.1.0.2";
+  sha256 = "07wy8drg4723zdy2172jrcvd5ir2c4ggcfz1n33jhm9iv3cl2app";
+  buildDepends = [ binary hashable ];
+  testDepends = [
+    binary hashable QuickCheck testFramework testFrameworkQuickcheck2
+  ];
+  meta = {
+    description = "Binary and Hashable instances for TypeRep";
+    license = self.stdenv.lib.licenses.bsd3;
+    platforms = self.ghc.meta.platforms;
+  };
+})

pkgs/development/libraries/haskell/data-accessor/data-accessor-mtl.nix

@@ -0,0 +1,14 @@
+{ cabal, dataAccessor, mtl }:
+
+cabal.mkDerivation (self: {
+  pname = "data-accessor-mtl";
+  version = "0.2.0.3";
+  sha256 = "1aksmm4ykb96khgq5y4vd40zbn4c73hgl21xvyc295cwxsyrbvbk";
+  buildDepends = [ dataAccessor mtl ];
+  meta = {
+    homepage = "http://www.haskell.org/haskellwiki/Record_access";
+    description = "Use Accessor to access state in mtl State monad class";
+    license = self.stdenv.lib.licenses.bsd3;
+    platforms = self.ghc.meta.platforms;
+  };
+})

pkgs/development/libraries/haskell/pointedlist/default.nix

@@ -0,0 +1,13 @@
+{ cabal, binary, derive }:
+
+cabal.mkDerivation (self: {
+  pname = "pointedlist";
+  version = "0.6";
+  sha256 = "16sfw77w46f7rjd1lpdfzi1bdgf81siy2sj71xqkqbsz6cvkjakg";
+  buildDepends = [ binary derive ];
+  meta = {
+    description = "A zipper-like comonad which works as a list, tracking a position";
+    license = self.stdenv.lib.licenses.bsd3;
+    platforms = self.ghc.meta.platforms;
+  };
+})