Migrate more tests from blink repository.

test/webkit/fast/js/object-extra-comma.js

Index: test/webkit/fast/js/object-extra-comma.js
diff --git a/test/webkit/array-constructor-host-call.js b/test/webkit/fast/js/object-extra-comma.js
similarity index 74%
copy from test/webkit/array-constructor-host-call.js
copy to test/webkit/fast/js/object-extra-comma.js
index 50d6489cafd0716dd5cbbe0f9da8a958d9f61ca6..720ff0c922c0f99621473881ed06f48f87e87902 100644
--- a/test/webkit/array-constructor-host-call.js
+++ b/test/webkit/fast/js/object-extra-comma.js
@@ -22,15 +22,12 @@
 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 description(
-"This tests that array construction via a host call works."
-);
+    'This test checks some object construction cases, including ' +
+    '<a href="https://bugs.webkit.org/show_bug.cgi?id=5939">5939: final comma in javascript object prevents parsing</a>' +
+    '.');
 
-function constructArray(arrayConstructor) {
-    return new arrayConstructor(100);
-}
-
-for (var i = 0; i < 3; ++i) {
-    var array = constructArray(Array);
-    shouldBeTrue("array instanceof Array");
-    shouldBe("array.length", "100");
-}
+shouldBe("var foo = { 'bar' : 'YES' }; foo.bar", "'YES'");
+shouldBe("var foo = { 'bar' : 'YES', }; foo.bar", "'YES'");
+shouldBe("var foo = { 'bar' : 'YES' , }; foo.bar", "'YES'");
+shouldThrow("var foo = { , 'bar' : 'YES' }; foo.bar");
+shouldThrow("var foo = { 'bar' : 'YES',, }; foo.bar");