public bool IsPropertyThatIsNotNull(ISymbol property) { if (DictionaryValues != null && DictionaryValues.Equals(property.OriginalDefinition)) { return(true); } if (DictionaryValues != null && DictionaryKeys.Equals(property.OriginalDefinition)) { return(true); } if (ExternalNotNullMethods.Contains(property)) { return(true); } return(false); }