Migrated several tests from blink to V8 repository.

test/webkit/date-utc-timeclip.js

Index: test/webkit/date-utc-timeclip.js
diff --git a/test/webkit/concat-while-having-a-bad-time.js b/test/webkit/date-utc-timeclip.js
similarity index 71%
copy from test/webkit/concat-while-having-a-bad-time.js
copy to test/webkit/date-utc-timeclip.js
index dfda1e08a0b36194b787a44ee12a9693acd8aeaf..318a08776fc81b242390ba16b12bc66f9dc0cb4d 100644
--- a/test/webkit/concat-while-having-a-bad-time.js
+++ b/test/webkit/date-utc-timeclip.js
@@ -21,11 +21,14 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-description(
-"Tests the behavior of Array.prototype.concat while the array is having a bad time due to one of the elements we are concatenating."
-);
-
-Object.defineProperty(Array.prototype, 0, { writable: false });
-shouldBe("[42].concat()", "[42]");
+description('Date.UTC() should apply TimeClip operation according to ECMA-262.');
 
+shouldBe('Date.UTC(275760, 8, 12, 23, 59, 59, 999)', '8639999999999999');
+shouldBe('Date.UTC(275760, 8, 13)', '8640000000000000');
+shouldBeTrue('isNaN(Date.UTC(275760, 8, 13, 0, 0, 0, 1))');
+shouldBeTrue('isNaN(Date.UTC(275760, 8, 14))');
 
+shouldBe('Date.UTC(-271821, 3, 20, 0, 0, 0, 1)', '-8639999999999999');
+shouldBe('Date.UTC(-271821, 3, 20)', '-8640000000000000');
+shouldBeTrue('isNaN(Date.UTC(-271821, 3, 19, 23, 59, 59, 999))');
+shouldBeTrue('isNaN(Date.UTC(-271821, 3, 19))');