[clang] Reapply "[Clang][CWG1815] Support lifetime extension of temporary created by aggregate initialization using a default member initializer" (PR #97308)

[via cfe-commits]

yronglin wrote:

> There still has a experimental-new-constant-interpreter issue need fix.

@tbaederr  Thanks! it's resolved by https://github.com/llvm/llvm-project/commit/d31603eefc2d8becfd1f41327b6a8db3e0e91a27 .

https://github.com/llvm/llvm-project/pull/97308