/*
 * call-seq:
 *   node_type.to_i => Numeric
 *
 * Returns an integer representing integer type of a node.  This is the
 * value you would see for the type of the node if you were examining it
 * in gdb.
 */
static VALUE node_type_to_i(VALUE node_type)
{
  return rb_struct_getmember(node_type, rb_intern("value"));
}