VM.assert(n.hasOneIn());
VM._assert(n.hasOneIn());
  private static void addToLoops(OPT_BasicBlock b, OPT_LSTNode n) {    while (n.loop != null) {      if (VM.VerifyAssertions)        VM.assert(n.hasOneIn());      n.loop.set(b.getNumber());      n = (OPT_LSTNode)n.firstInNode();    }  }