feat(third_party/bazel): Check in rules_haskell from Tweag

third_party/bazel/rules_haskell/tests/haddock/LibB.hs

@@ -0,0 +1,21 @@
+{-# LANGUAGE TemplateHaskell #-}
+-- | "LibB" doc.
+
+module LibB where
+
+import LibA.A (a)
+import LibA (f)
+import LibC (mytype, LibCType)
+import TH (foo)
+
+-- | Doc for 'x' using 'f' and 'a' and 'Int'.
+x :: Int
+x = const f a
+
+-- | This uses a type from an undocumented package
+y :: LibCType
+y = mytype
+
+-- | A thing generated with TH.
+z :: String
+z = $foo