Update and add basic prop-desc tests for Number

and Number.prototype

test/built-ins/Number/prop-desc.js

+// Copyright (C) 2016 The V8 Project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es6id: 20.1.1.1
+esid: sec-number-constructor-number-value
+description: >
+  Property descriptor of Number
+info: >
+  17 ECMAScript Standard Built-in Objects:
+
+  Every other data property described in clauses 18 through 26 and in Annex B.2
+  has the attributes { [[Writable]]: true, [[Enumerable]]: false,
+  [[Configurable]]: true } unless otherwise specified.
+includes: [propertyHelper.js]
+---*/
+
+verifyNotEnumerable(this, "Number");
+verifyWritable(this, "Number");
+verifyConfigurable(this, "Number");

test/built-ins/Number/prototype/15.7.3.1-1.js

-// Copyright (c) 2012 Ecma International.  All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-es5id: 15.7.3.1-1
-description: >
-    Number.prototype is a data property with default attribute values
-    (false)
----*/
-
-  var d = Object.getOwnPropertyDescriptor(Number, 'prototype');
-  
-
-assert.sameValue(d.writable, false, 'd.writable');
-assert.sameValue(d.enumerable, false, 'd.enumerable');
-assert.sameValue(d.configurable, false, 'd.configurable');

test/built-ins/Number/prototype/S15.7.3.1_A1_T1.js

-// Copyright 2009 the Sputnik authors.  All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-info: >
-    The Number property "prototype" has { DontEnum, DontDelete, ReadOnly }
-    attributes
-es5id: 15.7.3.1_A1_T1
-description: Checking if varying the Number.prototype property fails
-includes: [propertyHelper.js]
----*/
-
-//CHECK#1
-var x = Number.prototype;
-verifyNotWritable(Number, "prototype", null, 1);
-if (Number.prototype !== x) {
-  $ERROR('#1: The Number.prototype property has the attributes ReadOnly');
-}

test/built-ins/Number/prototype/S15.7.3.1_A1_T2.js

-// Copyright 2009 the Sputnik authors.  All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-info: >
-    The Number property "prototype" has { DontEnum, DontDelete, ReadOnly }
-    attributes
-es5id: 15.7.3.1_A1_T2
-description: Checking if deleting the Number.prototype property fails
-includes: [propertyHelper.js]
----*/
-
-verifyNotConfigurable(Number, "prototype");
-
-// CHECK#1
-try {
-  if (delete Number.prototype !== false) {
-    $ERROR('#1: The Number.prototype property has the attributes DontDelete');
-  }
-} catch (e) {
-  if (e instanceof Test262Error) throw e;
-  assert(e instanceof TypeError);
-}
-
-if (!Number.hasOwnProperty('prototype')) {
-  $ERROR('#2: The Number.prototype property has the attributes DontDelete');
-}

test/built-ins/Number/prototype/S15.7.3.1_A1_T3.js

-// Copyright 2009 the Sputnik authors.  All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-info: >
-    The Number property "prototype" has { DontEnum, DontDelete, ReadOnly }
-    attributes
-es5id: 15.7.3.1_A1_T3
-description: Checking if enumerating the Number.prototype property fails
----*/
-
-if (Number.propertyIsEnumerable('prototype')) {
-  $ERROR('#1: The Number.prototype property has the attribute DontEnum');
-}
-
-for(var x in Number) {
-  if(x === "prototype") {
-    $ERROR('#2: The Number.prototype has the attribute DontEnum');
-  }
-}

test/built-ins/Number/prototype/prop-desc.js

+// Copyright (C) 2016 The V8 Project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es6id: 20.1.2.15
+esid: sec-number.prototype
+description: >
+  "prototype" property of Number
+info: >
+  Number.prototype
+
+  This property has the attributes { [[Writable]]: false, [[Enumerable]]: false,
+  [[Configurable]]: false }.
+includes: [propertyHelper.js]
+---*/
+
+verifyNotEnumerable(Number, "prototype");
+verifyNotWritable(Number, "prototype");
+verifyNotConfigurable(Number, "prototype");