[clang] [clang][ASTImporter] New fix for default template parameter values. (PR #101836)

[Donát Nagy via cfe-commits]

https://github.com/NagyDonat approved this pull request.

This change seems to be correct, but I don't know enough to dig into the details and provide a confident review. However, I as far as I know there are no significantly better reviewers, so I can give you the formal approval.

I think you can merge this commit once you update the comment that you marked as inaccurate.

https://github.com/llvm/llvm-project/pull/101836