Type aliases in template classes don't get defined

[slburson]

I'm not sure whether this is a Claw bug or a libresect bug.

Consider this example:

namespace my_ns {
using conv_padding_mode_t = int;

template <int D>
struct ConvOptions {
    using padding_mode_t = conv_padding_mode_t;
    padding_mode_t& padding_mode() {
	return padding_mode_;
    }
private:
    padding_mode_t padding_mode_;
};

using Conv1dOptions = ConvOptions<1>;
} // namespace my_ns

The defifun for padding_mode references padding_mode_t, but there's no defitype for it. The problem occurs only if ConvOptions is a template class.

See libresect #12 for a convenient way to run the example. As for that bug, I think the problem here occurs in only one source file (the same one, in fact), so I can probably work around it for now by editing the file.