[DebugInfo][ConstraintElimination] Fix debug value loss in replacing comparisons with the speculated constants#136839

Apochens merged 5 commits intollvm:mainllvm/llvm-project:mainfrom

Apochens:#135736-constraint_elimination-value-update-errorApochens/llvm-project:#135736-constraint_elimination-value-update-errorCopy head branch name to clipboard