Test sequence during deletion of SuperProperty

test/language/expressions/delete/super-property-null-base.js

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+// Copyright (C) 2021 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-delete-operator-runtime-semantics-evaluation
+description: The restriction on the base of a super property must be enforced before the delete expression is evaluated.
+info: |
+  # 13.3.7.3 MakeSuperPropertyReference ( actualThis, propertyKey, strict )
+
+  1. Let env be GetThisEnvironment().
+  2. Assert: env.HasSuperBinding() is true.
+  3. Let baseValue be ? env.GetSuperBase().
+  4. Let bv be ? RequireObjectCoercible(baseValue).
+
+  # 13.5.1.2 Runtime Semantics: Evaluation
+  UnaryExpression : delete UnaryExpression
+
+  1. Let ref be the result of evaluating UnaryExpression.
+  [...]
+  5. If IsPropertyReference(ref) is true, then
+    a. If IsSuperReference(ref) is true, throw a ReferenceError exception.
+features: [class]
+---*/
+
+class C {
+  static m() {
+    delete super.x;
+  }
+}
+
+Object.setPrototypeOf(C, null);
+
+assert.throws(TypeError, () => {
+  C.m();
+});