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Update analyzer rules docs stuff (#84481)
Make types in Features layer sealed
Fix
Remove unused feature flag
Only cache diagnostics for legacy projects (#82643)
Do not place SuppressMessage attributes on an extension block
Rename
Move oop
Clean up KeyValuePair polyfills (#78872)
remove using
Update features to use file scoped namespaces
Simplify
Move more down
Remove oop calls that are no longer needed