Assert 'errors' is absent for AggregateError.prototype

test/built-ins/NativeErrors/AggregateError/prototype/errors-absent-on-prototype.js

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+// Copyright (C) 2020 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-properties-of-the-aggregate-error-prototype-objects
+description: >
+  The AggregateError prototype object isn't an AggregateError instance.
+info: |
+  Properties of the AggregateError Prototype Object
+
+  The AggregateError prototype object:
+    ...
+    - is not an Error instance or an AggregateError instance and does not have an
+      [[ErrorData]] internal slot.
+    ...
+features: [AggregateError]
+---*/
+
+assert.sameValue(AggregateError.prototype.hasOwnProperty("errors"), false);