Add custom cop for feature flag checks
What does this MR do and why?
This MR adds a cop to prevent checking feature flags in instrumentation, monkey-patches and Redis folders. These are the 3 folders where modules are used in monkey-patches (instrumentation/patch) or where Redis could loopback and call itself. The purpose is to avoid cyclical dependencies from forming (gem code calling GitLab code) and unending recursive loops.
Issue: #385237
Screenshots or screen recordings
Screenshots are required for UI changes, and strongly recommended for all other merge requests.
How to set up and validate locally
Numbered steps to set up and validate the change are strongly suggested.
MR acceptance checklist
This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.
-
I have evaluated the MR acceptance checklist for this MR.