haskell-haddock: add version 2.15.0

pkgs/development/tools/documentation/haddock/2.15.0.nix

@@ -0,0 +1,20 @@
+# This file was auto-generated by cabal2nix. Please do NOT edit manually!
+
+{ cabal, Cabal, filepath, haddockApi }:
+
+cabal.mkDerivation (self: {
+  pname = "haddock";
+  version = "2.15.0";
+  sha256 = "1vay0v0a02xj2m40w71vmjadlm6pzv309r1jhr61xv1wnj88i75w";
+  isLibrary = false;
+  isExecutable = true;
+  buildDepends = [ haddockApi ];
+  testDepends = [ Cabal filepath ];
+  preCheck = "unset GHC_PACKAGE_PATH";
+  meta = {
+    homepage = "http://www.haskell.org/haddock/";
+    description = "A documentation-generation tool for Haskell libraries";
+    license = self.stdenv.lib.licenses.bsd3;
+    platforms = self.ghc.meta.platforms;
+  };
+})