/rhino/xmlimplsrc/org/mozilla/javascript/xmlimpl/XMLObjectImpl.java
ctor = new IdFunctionObject( this, id, 1) ;
ctor = new IdFunctionObject ( this, XMLOBJECT_TAG, id, 1 ) ;
case Id_constructor: { IdFunctionObject ctor; if (this instanceof XML) { ctor = new XMLCtor((XML) this, XMLOBJECT_TAG, id, 1); } else { <extra_id_0> } initPrototypeConstructor(ctor); return; } case Id_addNamespace: arity = 1;