@Override
  void addStub(@NotNull StubBase<?> stub, @Nullable StubBase<?> parent, @Nullable IStubElementType<?, ?> type) {
    // stub is lazily created, so we already know all structure, so do nothing
  }
@Override
  void addStub(@NotNull StubBase<?> stub, @Nullable StubBase<?> parent, @Nullable IStubElementType<?, ?> type)