[CheckId] CA2129 [Warning] CA2140: Transparent code must not reference security critical items [Description] 
Methods that are marked by SecurityTransparentAttribute call nonpublic members that are marked as SecurityCritical. This rule analyzes all methods and types in an assembly that is mixed transparent/critical, and flags any calls from transparent code to nonpublic critical code that are not marked as SecurityTreatAsSafe.