re-import sources as agreed with the maintainer

gating.yaml

@@ -0,0 +1,6 @@
+--- !Policy
+product_versions:
+  - rhel-8
+decision_context: osci_compose_gate
+rules:
+  - !PassingTestCaseRule {test_case_name: osci.brew-build.tier0.functional}

tests/tests.yml

@@ -0,0 +1,18 @@
+---
+- hosts: localhost
+  tags:
+  - classic
+  roles:
+  - role: standard-test-basic
+    vars:
+    - pkg: "{{playbook_dir|dirname|basename}}"
+    - develpkg: "{{pkg}}-devel"
+    - pkgname: "{{pkg|regex_replace('^ghc-(.*)$', '\\1')}}"
+    required_packages:
+    - "{{develpkg}}"
+    tests:
+    - ghc:
+        run: echo 'main = return ()' > test.hs; ghc -package {{pkgname}} test.hs; ./test
+    - revdeps:
+        run: revdeps=$(dnf -q repoquery --qf "%{name}" --whatrequires={{develpkg}}); if [ -z "${revdeps}" ]; then echo "No valid dependents"; exit 1; else dnf -y install ${revdeps}; fi
+...