Add simple static assert to enable removing some copies

Just add a simple assert to at least trigger until update is complete while allowing removing some copies between int64 and int64_t that are required where these differ.

PiperOrigin-RevId: 354372090
Change-Id: I350e78add909c51a25701eb1d6e195587e61dac7

tensorflow/compiler/mlir/tensorflow/ir/tf_ops.cc

@@ -68,6 +68,12 @@ limitations under the License.
 #include "tensorflow/core/platform/logging.h"
 #include "tensorflow/core/util/tensor_format.h"
 
+// These are currently aliases and the alias will be removed, verified
+// equivalent until then.
+// TODO(b/178519687): Remvoe once addressed.
+static_assert(std::is_same<tensorflow::int64, std::int64_t>::value,
+              "tensorflow::int64 is expected to match std::int64_t");
+
 namespace mlir {
 namespace TF {