int foo ()
{
  extern int baz (int i = 5);
  return baz ();
}
int baz (int i = 0);
int bar ()
{
  extern int baz (int i = 6);
  return baz ();
}
int foo ()
{
  extern int baz (int i = 5);
  return baz ();
}
int baz (int i = 0);
int bar ()
{
  extern int baz (int i = 6);
  return baz ();
}