[PATCH] D136564: [clang] Instantiate NTTPs and template default arguments with sugar

[Matheus Izvekov via Phabricator via cfe-commits]

mizvekov added a comment.

@rtrieu @hokein I just proposed a fix for this at https://reviews.llvm.org/D136977

At least for the repro posted above, this was a pre-existing bug with unexpanded packs appearing within sugar, which the present patch potentialized by preserving the type alias when instantiating the default arguments for templates.

I also filled this as https://github.com/llvm/llvm-project/issues/58679

And there is also a drive-by error recovery improvement that touches this area: https://reviews.llvm.org/D136962


Repository:
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  https://reviews.llvm.org/D136564/new/

https://reviews.llvm.org/D136564