[llvm] Use DIExpression::foldConstantMath() at the result of an append() (PR #71719)

[Shubham Sandeep Rastogi via llvm-commits]

rastogishubham wrote:

@jmorse I have updated this patch, I am not aware of how to push to the compile time tracker, can you please help me out

https://github.com/llvm/llvm-project/pull/71719