* add all_files testonly targets in examples tutoreal and examples/arm

  workspaces
* add local_repository dependency in rules_haskell on these workspaces
* enumerate filegroups to check explicitly in buildifier_test target

tests/BUILD.bazel

@@ -1,6 +1,5 @@
 load(":inline_tests.bzl", "sh_inline_test")
 load("@bazel_tools//tools/build_rules:test_rules.bzl", "rule_test")
-load("@com_github_bazelbuild_buildtools//buildifier:def.bzl", "buildifier_test")
 load("@os_info//:os_info.bzl", "is_windows")
 load("//tests:rule_test_exe.bzl", "rule_test_exe")
 load(
@@ -516,8 +515,3 @@ filegroup(
     ],
     visibility = ["//visibility:public"],
 )
-
-buildifier_test(
-    name = "buildifier_test",
-    srcs = ["//:all_files"],
-)