[mlir][NFC] Add static ShapedType::isDynamicShape utility

[dcaballe]

Summary

This utility is useful when we need to know if shape is dynamic and
we don't have a Type itself. I found myself implementing this multiple
times using ShapedType::isDynamic. Not sure if there is something
similar somewhere else.

mlir/include/mlir/IR/BuiltinTypeInterfaces.td

static constexpr int64_t kDynamicSize =
         std::numeric_limits<int64_t>::min();
     static constexpr int64_t kDynamicStrideOrOffset =
         std::numeric_limits<int64_t>::min();
 
     /// Whether the given dimension size indicates a dynamic dimension.
     static constexpr bool isDynamic(int64_t dSize) {
       return dSize == kDynamicSize;
     }
+    /// Whether the given shape has any size that indicates a dynamic dimension.
+    static bool isDynamicShape(ArrayRef<int64_t> dSizes) {
+      return any_of(dSizes, [](int64_t dSize) { return isDynamic(dSize); });
+    }
     static constexpr bool isDynamicStrideOrOffset(int64_t dStrideOrOffset) {
       return dStrideOrOffset == kDynamicStrideOrOffset;
     }
 
     /// Return the number of elements present in the given shape.
     static int64_t getNumElements(ArrayRef<int64_t> shape);
 
     /// Returns the total amount of bits occupied by a value of this type. This
bool isDynamicDim(unsigned idx) const {
       assert(idx < getRank() && "invalid index for shaped type");
       return ::mlir::ShapedType::isDynamic($_type.getShape()[idx]);
     }
 
     /// Returns if this type has a static shape, i.e. if the type is ranked and
     /// all dimensions have known size (>= 0).
     bool hasStaticShape() const {
       return $_type.hasRank() &&
-             llvm::none_of($_type.getShape(), ::mlir::ShapedType::isDynamic);
+             !::mlir::ShapedType::isDynamicShape($_type.getShape());
     }
 
     /// Returns if this type has a static shape and the shape is equal to
     /// `shape` return true.
     bool hasStaticShape(::llvm::ArrayRef<int64_t> shape) const {
       return hasStaticShape() && $_type.getShape() == shape;
     }