private static void dumpPointersRecursivelyTo(@NotNull FilePartNode node, @NotNull Collection<? super VirtualFilePointer> result) {
    node.addAllPointersTo(result);
    for (FilePartNode child : node.children) {
      dumpPointersRecursivelyTo(child, result);
    }
  }
private static void dumpPointersRecursivelyTo(@NotNull FilePartNode node, @NotNull Collection<? super VirtualFilePointer> result)