3 Even if union uses enumeration as discriminant and all possible case
4 are specified in IDL there are still possible a lot of other values because
5 enumeration is int internally. Thus we need _default() function for such
6 unions and handle this case during marshaling/demarshaling.
14 Regression output: Basically the test should not compile if there is a
15 regression. But if it compiles then any ERROR message should indicate the