<<rule>> Create: Unique Named Structural Feature in Super-Class

<<preserve>> toSuperClass : EClass <<create>> newSuperStructuralFeature : EStructuralFeature <<create>> name = structuralFeatureName <<forbid, post>> postSubClass : EClass <<forbid, post>> postSubStructuralFeature : EStructuralFeature <<forbid, post>> name = structuralFeatureName <<forbid, post>> eSuperTypes <<forbid, post>> eStructuralFeatures <<create>> eContainingClass eStructuralFeatures