Update test/parallel/test-structuredClone-global.js

Co-authored-by: jakecastelli <38635403+jakecastelli@users.noreply.github.com>

Author: jazelly

test/parallel/test-structuredClone-global.js

@@ -44,7 +44,7 @@ for (const StreamClass of [ReadableStream, WritableStream, TransformStream]) {
 ].forEach((platformEntity) => {
   assert.throws(() => structuredClone(new platformEntity.platformClass(platformEntity.value)),
                 new DOMException('Cannot clone object of unsupported type.', 'DataCloneError'),
-                `Cloning ${platformEntity.message} should throw DOMException`);
+                `Cloning ${platformEntity.brand} should throw DOMException`);
 
 });