widl: Remove use of type_t "ref" field for base types

[Dan Hipschman]

On Tue, Aug 29, 2006 at 01:46:52PM +0100, Robert Shearman wrote:
> >@@ -207,6 +207,7 @@ struct _type_t {
> >  func_t *funcs;                  /* interfaces and modules */
> >  var_t *fields;                  /* interfaces, structures and 
> >  enumerations */
> >  ifref_t *ifaces;                /* coclasses */
> >+  type_t *orig;                   /* dup'd types */
> >  int ignore, is_const, sign;
> >  int defined, written, user_types_registered;
> >  int typelib_idx;
> 
> You add a new field to type_t, yet no code uses it. Will it have some 
> future purpose?

It takes the place of ref for typedefs.  I.e., it refers to the typedef'd
type.  It's used in write_typedef, check_for_user_types, encode_type, and
add_typedef_typeinfo in the third patch of my last series.  It's true no
code used it in this earlier patch (except duptype, which only initialized
it).