Add NumberFormat tests for OrdinaryHasInstance

Add tests to make sure NumberFormat does not call the instanceof
operator and calls OrdinaryHasInstance instead.

Refs: https://github.com/tc39/ecma402/pull/500

test/intl402/NumberFormat/constructor-no-instanceof.js

@@ -0,0 +1,16 @@
+// Copyright (C) 2021 Igalia S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-Intl.NumberFormat.prototype.resolvedOptions
+description: >
+  Tests that Intl.NumberFormat.prototype.resolvedOptions calls
+  OrdinaryHasInstance instead of the instanceof operator which includes a
+  Symbol.hasInstance lookup and call among other things.
+---*/
+
+Object.defineProperty(Intl.NumberFormat, Symbol.hasInstance, {
+    get() { throw new Test262Error(); }
+});
+
+Intl.NumberFormat();

test/intl402/NumberFormat/prototype/format/no-instanceof.js

@@ -0,0 +1,18 @@
+// Copyright (C) 2021 Igalia S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-Intl.NumberFormat.prototype.resolvedOptions
+description: >
+  Tests that Intl.NumberFormat.prototype.resolvedOptions calls
+  OrdinaryHasInstance instead of the instanceof operator which includes a
+  Symbol.hasInstance lookup and call among other things.
+---*/
+
+const nf = new Intl.NumberFormat();
+
+Object.defineProperty(Intl.NumberFormat, Symbol.hasInstance, {
+    get() { throw new Test262Error(); }
+});
+
+nf.format;

test/intl402/NumberFormat/prototype/resolvedOptions/no-instanceof.js

@@ -0,0 +1,18 @@
+// Copyright (C) 2021 Igalia S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-Intl.NumberFormat.prototype.resolvedOptions
+description: >
+  Tests that Intl.NumberFormat.prototype.resolvedOptions calls
+  OrdinaryHasInstance instead of the instanceof operator which includes a
+  Symbol.hasInstance lookup and call among other things.
+---*/
+
+const nf = new Intl.NumberFormat();
+
+Object.defineProperty(Intl.NumberFormat, Symbol.hasInstance, {
+    get() { throw new Test262Error(); }
+});
+
+nf.resolvedOptions();