else if (_test.isFalse()) out.print("BooleanValue.FALSE.toBoolean()");
  protected void generateImpl(PhpWriter out)    throws IOException  {    out.print("while (");    if (_test.isTrue())      out.print("BooleanValue.TRUE.toBoolean()");    else      _test.generateBoolean(out);    out.println(") {");    out.pushDepth();    out.println("env.checkTimeout();");    _block.generate(out);    out.popDepth();    out.println("}");  }