[clang] [llvm] Ast importer visitors (PR #138838)

[Balázs Kéri via llvm-commits]

balazske wrote:

> Newly added VisitSubstNonTypeTemplateParmPackExpr, VisitPseudoObjectExpr, VisitCXXParenListInitExpr are also without tests.
> I've faced them on my project, and looks like it is not because of newly implemented concepts imports. But I'm not sure. Should I move 'em to separate pull request?

It would be better to have not strictly related changes in a different pull request to make debugging more easy (removal of a commit should not remove unrelated code).


https://github.com/llvm/llvm-project/pull/138838