[clang] [clang][Interp] Handle CXXScalarValueInitExprs (PR #67147)

[Shafik Yaghmour via cfe-commits]

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

LGTM, just fill out the description with some more details so folks reading git log will have more context,

https://github.com/llvm/llvm-project/pull/67147