message: Add HLO_ScalarIntTensor type to HLO dialect.
diff: @@ -37,6 +37,11 @@ def HLO_Token : Type<CPred<"$_self.isa<TokenType>()">, "token">;
  // Any integer tensor types
  def HLO_IntTensor : TensorOf<[HLO_Int]>;
  +// Any integer tensor type with rank 0 (i.e. representing a single integer).
  +def HLO_ScalarIntTensor : ShapedContainerType<
  + [HLO_Int], And<[IsTensorTypePred, HasAnyRankOfPred<[0]>]>,
  + "a 0-dim integer tensor">;
  +
  // Any floating-point tensor types
  def HLO_FpTensor : TensorOf<[AnyFloat]>;
  