@Nullable
  private ASTNode getAfterNode(int newChildIndex) {
    if (newChildIndex == 0) {  // block text contains backslash line wrappings, child block list not built
      return null;
    }
    int prevIndex = newChildIndex - 1;
    while (prevIndex > 0 && getSubBlockByIndex(prevIndex).getNode().getElementType() == PyTokenTypes.END_OF_LINE_COMMENT) {
      prevIndex--;
    }
    return getSubBlockByIndex(prevIndex).getNode();
  }
@Nullable
  private ASTNode getAfterNode(int newChildIndex)