message: Fix two more getHashValues.
  These were still returning the hash of the pointers resulting in the two getHashValues being different.
diff: @@ -73,9 +73,13 @@ struct AffineMapKeyInfo : DenseMapInfo<AffineMap> {
  // expressions.
  using KeyTy = std::tuple<unsigned, unsigned, ArrayRef<AffineExpr>,
  ArrayRef<AffineExpr>>;
  - using DenseMapInfo<AffineMap>::getHashValue;
  using DenseMapInfo<AffineMap>::isEqual;
  + static unsigned getHashValue(const AffineMap &key) {
  + return getHashValue(KeyTy(key.getNumDims(), key.getNumSymbols(),
  + key.getResults(), key.getRangeSizes()));
  + }
  +
  static unsigned getHashValue(KeyTy key) {
  return hash_combine(
  std::get<0>(key), std::get<1>(key),
  @@ -96,9 +100,13 @@ struct IntegerSetKeyInfo : DenseMapInfo<IntegerSet> {
  // expressions appearing in the LHS of constraints, and eqFlags.
  using KeyTy =
  std::tuple<unsigned, unsigned, ArrayRef<AffineExpr>, ArrayRef<bool>>;
  - using DenseMapInfo<IntegerSet>::getHashValue;
  using DenseMapInfo<IntegerSet>::isEqual;
  + static unsigned getHashValue(const IntegerSet &key) {
  + return getHashValue(KeyTy(key.getNumDims(), key.getNumSymbols(),
  + key.getConstraints(), key.getEqFlags()));
  + }
  +
  static unsigned getHashValue(KeyTy key) {
  return hash_combine(
  std::get<0>(key), std::get<1>(key),
  