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

third_party/bazel/rules_haskell/tests/library-with-cbits/AddOne.hsc

@@ -0,0 +1,3 @@
+module AddOne where
+
+foreign import ccall "c_add_one" addOne :: Int -> Int

third_party/bazel/rules_haskell/tests/library-with-cbits/AddOne2.hs

@@ -0,0 +1,7 @@
+module AddOne2
+  ( addOne2
+  ) where
+
+import AddOne
+
+addOne2 = addOne

third_party/bazel/rules_haskell/tests/library-with-cbits/BUILD.bazel

@@ -0,0 +1,36 @@
+load(
+    "@io_tweag_rules_haskell//haskell:haskell.bzl",
+    "haskell_library",
+    "haskell_toolchain_library",
+)
+
+haskell_library(
+    name = "library-with-cbits",
+    srcs = ["AddOne.hsc"],
+    linkstatic = False,
+    visibility = ["//visibility:public"],
+    deps = [
+        "//tests/data:ourclibrary",
+        "//tests/hackage:base",
+    ],
+)
+
+haskell_library(
+    name = "library-with-cbits-indirect",
+    srcs = ["AddOne2.hs"],
+    visibility = ["//visibility:public"],
+    deps = [
+        ":library-with-cbits",
+        "//tests/hackage:base",
+    ],
+)
+
+haskell_library(
+    name = "library-with-cbits-static",
+    srcs = ["AddOne.hsc"],
+    visibility = ["//visibility:public"],
+    deps = [
+        "//tests/data:ourclibrary-static",
+        "//tests/hackage:base",
+    ],
+)