todo

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Combined list of things to-do and things to think about
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* It's possible to contrive IDL examples which clash with internal names:
    exception e{
      long pd_insertToAnyFn;     // names inherited from CORBA::Exception
      long pd_insertToAnyFnNCP;  // and not private
      long insertExceptionToAny;
    };
  A suitable fix is to _ prefix the internal names, but the changes will
  ripple outwards from the IDL compiler through include/omniORB3/CORBA.h

  Of course it is still possible to contrive IDL examples which don't map
  properly onto C++ at all:

    interface T {};
    interface T_var {};

* Slight assymmetry in call desc unmarshalling code (positions where temp
  variables are declared seems to vary)

* Unify string marshalling/ unmarshalling- why is it sometimes done through
  a String_member and sometimes done at the char level? -- Apparently this 
  was a changeover which was never 100% completed.

* Surely a return value is semantically identical to an out argument value?
  Why does it become a special case in the marshalling routines?

* Perhaps we could simplify handling of anonymous sequences etc by introducing
  (internal) typedefs?

* Would it be possible/ easier to remove need to consider declarators when
  looking at an object's type? (Maybe this is a just personal dislike of 
  C/ C++ / IDL declarator syntax) Shouldn't a type be a simple structure
    t = Sequence of (Array of (Array of (Alias of (Struct foo))))
  and be independent of it's actual _name(s)_. Perhaps make functions
    marshal : fn Type -> Function block
  and store a hashtable of functions available to promote reuse? Or could
  expand each inline for speed?

  Perhaps create a type class with appropriate constructors (taking types and
  optional declarators) which contains the marshalling, unmarshalling and
  alignment code?