private void insertLineBreakBefore(ASTNode anchorBefore) {
    ASTNode propertiesList = getPropertiesList();
    if (anchorBefore == null && propertiesList.getFirstChildNode() == null) {
      getNode().addChild(ASTFactory.whitespace("\n"), propertiesList);
    }
    else {
      propertiesList.addChild(ASTFactory.whitespace("\n"), anchorBefore);
    }
  }
private void insertLineBreakBefore(ASTNode anchorBefore)