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

third_party/bazel/rules_haskell/tests/package-id-clash-binary/BUILD.bazel

@@ -0,0 +1,15 @@
+load(
+    "@io_tweag_rules_haskell//haskell:haskell.bzl",
+    "haskell_test",
+    "haskell_toolchain_library",
+)
+
+haskell_test(
+    name = "bin",
+    srcs = ["Main.hs"],
+    deps = [
+        "//tests/hackage:base",
+        "//tests/package-id-clash-binary/a:foo",
+        "//tests/package-id-clash-binary/b:foo",
+    ],
+)

third_party/bazel/rules_haskell/tests/package-id-clash-binary/Main.hs

@@ -0,0 +1,6 @@
+module Main where
+
+import Foo
+import Baz
+
+main = print $ x + y

third_party/bazel/rules_haskell/tests/package-id-clash-binary/a/BUILD.bazel

@@ -0,0 +1,12 @@
+load(
+    "@io_tweag_rules_haskell//haskell:haskell.bzl",
+    "haskell_library",
+    "haskell_toolchain_library",
+)
+
+haskell_library(
+    name = "foo",
+    srcs = ["Foo.hs"],
+    visibility = ["//visibility:public"],
+    deps = ["//tests/hackage:base"],
+)

third_party/bazel/rules_haskell/tests/package-id-clash-binary/a/Foo.hs

@@ -0,0 +1,3 @@
+module Foo where
+
+x = 2

third_party/bazel/rules_haskell/tests/package-id-clash-binary/b/BUILD.bazel

@@ -0,0 +1,12 @@
+load(
+    "@io_tweag_rules_haskell//haskell:haskell.bzl",
+    "haskell_library",
+    "haskell_toolchain_library",
+)
+
+haskell_library(
+    name = "foo",
+    srcs = ["Baz.hs"],
+    visibility = ["//visibility:public"],
+    deps = ["//tests/hackage:base"],
+)

third_party/bazel/rules_haskell/tests/package-id-clash-binary/b/Baz.hs

@@ -0,0 +1,3 @@
+module Baz where
+
+y = 2