llvm-project

197704a6 - [mlir][Presburger] make IntegerRelation::iterVarKind const (#172958)

[mlir][Presburger] make IntegerRelation::iterVarKind const (#172958) `iterVarKind` is effectively const but not marked as such. Co-authored-by: Jeremy Kun <j2kun@users.noreply.github.com>