code: def add_type_struct_or_union(self, name, interp, node):
          
          self.add_type_class(name, StructUnionDef(name, interp, node))
docs: Store the node with the name. When it is instantiated,
          the node itself will be handled.
  
          :name: name of the typedefd struct/union
          :node: the union/struct node
          :interp: the 010 interpreter