Migrated several tests from blink to V8 repository.

test/webkit/dfg-mul-big-integers.js

Index: test/webkit/dfg-mul-big-integers.js
diff --git a/test/webkit/concat-while-having-a-bad-time.js b/test/webkit/dfg-mul-big-integers.js
similarity index 86%
copy from test/webkit/concat-while-having-a-bad-time.js
copy to test/webkit/dfg-mul-big-integers.js
index dfda1e08a0b36194b787a44ee12a9693acd8aeaf..0176a2585589e377f6a313b487cfe968d1986c6e 100644
--- a/test/webkit/concat-while-having-a-bad-time.js
+++ b/test/webkit/dfg-mul-big-integers.js
@@ -22,10 +22,14 @@
 // 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."
+"Tests what happens when you multiply large integers in an integer context."
 );
 
-Object.defineProperty(Array.prototype, 0, { writable: false });
-shouldBe("[42].concat()", "[42]");
+function foo(a, b) {
+    return (a * b) | 0;
+}
+
+for (var i = 0; i < 100; ++i)
+    shouldBe("foo(2147483647, 2147483646)", "-2147483648");