[omniORB] IDL porting 2.8 -> 3.0

[Renzo Tomaselli]

Hi all,
        as many others I'm approaching the issue of porting existing
implementations from 2.8 to 3.0.
The following idl snapshot doesn't compile under 3.0, while it does well on
omniidl2:

module M1 {
    interface I1 {};
};
module M2 {
    typedef M1::I1 I1;
    interface I2 : M2::I1 {};
};

Omniidl reports after "omniidl -bcxx error.idl":

omniidl: Fatal error in C++ backend
omniidl:
omniidl: An AttributeError exception was caught
omniidl: Debug mode is currently off.

This example has been stripped from real code and it reflects a common way
of redefining included stuff from imported modules; while a bit convoluted,
it was generated from the Rational Rose CORBA backend.
I presume there is some specs violation, but I can't understand where;
furthermore parsing seems ok, and even through -v there is no additional
info.
Thanks,
                                             Renzo Tomaselli
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