Global constructors should be configurable and not enumerable

LayoutTests/fast/js/script-tests/global-constructors-attributes.js

Index: LayoutTests/fast/js/script-tests/global-constructors-attributes.js
diff --git a/LayoutTests/fast/js/script-tests/global-constructors-attributes.js b/LayoutTests/fast/js/script-tests/global-constructors-attributes.js
new file mode 100644
index 0000000000000000000000000000000000000000..8a1b19d38e9ef05a5dfe440f6f4cc73e37c7b2e7
--- /dev/null
+++ b/LayoutTests/fast/js/script-tests/global-constructors-attributes.js
@@ -0,0 +1,28 @@
+description("Test to ensure that global constructors have the right attributes");
+
+function descriptorShouldBe(object, property, expected) {
+    var test = 'Object.getOwnPropertyDescriptor('+object+", "+property+')';

[arv (Not doing code reviews), 2013/04/24 15:34:08]

whitespace around binops

[arv (Not doing code reviews), 2013/04/24 15:34:08]

Stick to either " or '

+    if ("writable" in expected) {
+      //  shouldBe(test+'.writable', '' + expected.writable);
+        shouldBe(test+'.value', '' + expected.value);
+        shouldBeFalse(test+".hasOwnProperty('get')");
+        shouldBeFalse(test+".hasOwnProperty('set')");
+    } else {
+        shouldBe(test+'.get', '' + expected.get);
+        shouldBe(test+'.set', '' + expected.set);
+        shouldBeFalse(test+".hasOwnProperty('value')");
+        shouldBeFalse(test+".hasOwnProperty('writable')");
+    }
+    shouldBe(test+'.enumerable', '' + expected.enumerable);
+    shouldBe(test+'.configurable', '' + expected.configurable);
+}
+
+var global = this;
+
+descriptorShouldBe("global", "'CSSRuleList'", {writable: true, enumerable: false, configurable: true, value:"CSSRuleList"});
+descriptorShouldBe("global", "'Document'", {writable: true, enumerable: false, configurable: true, value:"Document"});
+descriptorShouldBe("global", "'Element'", {writable: true, enumerable: false, configurable: true, value:"Element"});
+descriptorShouldBe("global", "'HTMLDivElement'", {writable: true, enumerable: false, configurable: true, value:"HTMLDivElement"});
+descriptorShouldBe("global", "'ProgressEvent'", {writable: true, enumerable: false, configurable: true, value:"ProgressEvent"});
+descriptorShouldBe("global", "'Selection'", {writable: true, enumerable: false, configurable: true, value:"Selection"});
+descriptorShouldBe("global", "'XMLHttpRequest'", {writable: true, enumerable: false, configurable: true, value:"XMLHttpRequest"});