Invalid demangling for (empty?) vararg templates

[jan-auer]

mangled:       _ZN4base8internal13FunctorTraitsIPFvvEvE6InvokeIJEEEvS3_DpOT_
c++filt:       void base::internal::FunctorTraits<void (*)(), void>::Invoke<>(void (*)())
cpp_demangle:  void base::internal::FunctorTraits<void (*)(), void>::Invoke<>(void (*)(), &&...)

Also, the no_params option has no effect on this symbol. I haven't tested yet what happens with a non-empty argarg template.

[fitzgen]

Thanks for filing a bug report!

FWIW, I haven't been focusing on the no_params output, and am trying to get output with params correct before I really dive into output without params.