Migrated several tests from blink to V8 repository.

test/webkit/array-sort-numericCompare.js

Index: test/webkit/array-sort-numericCompare.js
diff --git a/test/webkit/concat-while-having-a-bad-time.js b/test/webkit/array-sort-numericCompare.js
similarity index 79%
copy from test/webkit/concat-while-having-a-bad-time.js
copy to test/webkit/array-sort-numericCompare.js
index dfda1e08a0b36194b787a44ee12a9693acd8aeaf..74df82f61db4568b7791bc82188dddaba70e84f1 100644
--- a/test/webkit/concat-while-having-a-bad-time.js
+++ b/test/webkit/array-sort-numericCompare.js
@@ -22,10 +22,18 @@
 // 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."
+"This tests that a call to array.sort(compareFunction) works correctly for numeric comparisons (arg1 - arg2), and also for things that might look like numeric comparisons."
 );
 
-Object.defineProperty(Array.prototype, 0, { writable: false });
-shouldBe("[42].concat()", "[42]");
+function doSort(x, y)
+{
+    return x - y;
+}
 
+function dontSort(w, x, y)
+{
+    return x - y;
+}
 
+shouldBe("[3,1,5,2,4].sort(doSort)", "[1,2,3,4,5]");
+shouldBe("[3,1,5,2,4].sort(dontSort)", "[3,1,5,2,4]");