<<rule>> Create: Attribute with Wildcard Type-Argument

<<forbid, post>> postClassifierUsedAsTypeArgument : EClassifier <<preserve>> toDataTypeWithTypeParameter : EDataType <<create>> newT : ETypeParameter <<create>> newAttributeWithGenericType : EAttribute <<create>> newGenericTypeOfTypedElement : EGenericType <<create>> newTypeArgumentOfGenericTypeOfTypedElement : EGenericType <<preserve>> toContainerClass : EClass <<create>> eType <<create>> eClassifier <<forbid, post>> eClassifier <<create>> eTypeParameters <<create>> eGenericType <<create>> eTypeArguments <<create>> eContainingClass eStructuralFeatures