[lldb] [llvm] [LLDB] Switch to using DIL as default implementation for 'frame var'. (PR #147887)

[Pavel Labath via llvm-commits]

labath wrote:

In that case, please create the cherry pick as soon as possible, and we can see where that discussion leads us. For myself, I'm going to defer @JDevlieghere opinion.

https://github.com/llvm/llvm-project/pull/147887