1union tree_node;
2typedef union tree_node *tree;
3struct tree_common
4{
5  tree type;
6  unsigned lang_flag_0 : 1;
7};
8union tree_node
9{
10  struct tree_common common;
11};
12static void
13java_check_regular_methods (tree class_decl)
14{
15  int saw_constructor = class_decl->common.type->common.lang_flag_0;
16  tree class = class_decl->common.type;
17  for (;;)
18    {
19      if (class)
20        if (class_decl->common.type)
21          bar (class);
22    }
23}
24