private boolean skipNode(LighterAST tree, LighterASTNode parent, LighterASTNode node) {
    if (tree instanceof TreeBackedLighterAST) {
      return skipChildProcessingWhenBuildingStubs(((TreeBackedLighterAST)tree).unwrap(parent), ((TreeBackedLighterAST)tree).unwrap(node));
    }
    else {
      return skipChildProcessingWhenBuildingStubs(tree, parent, node);
    }
  }
private boolean skipNode(LighterAST tree, LighterASTNode parent, LighterASTNode node)