[clang] [clang] Distinguish NTTPs with deduced types in variable template partial specializations (PR #152864)

[Matheus Izvekov via cfe-commits]

mizvekov wrote:

> @mizvekov This is not a regression, the bug has been present since the introduction of `auto` non-type template parameters, i.e. Clang 4.

Alright, then this should be mentioned in the release notes.

https://github.com/llvm/llvm-project/pull/152864