Migrated several tests from blink to V8 repository.

test/webkit/add-recovery.js

Index: test/webkit/add-recovery.js
diff --git a/test/webkit/concat-while-having-a-bad-time.js b/test/webkit/add-recovery.js
similarity index 67%
copy from test/webkit/concat-while-having-a-bad-time.js
copy to test/webkit/add-recovery.js
index dfda1e08a0b36194b787a44ee12a9693acd8aeaf..d204ef17fca71024ec6c6a01bcaa5a305ee2bb0a 100644
--- a/test/webkit/concat-while-having-a-bad-time.js
+++ b/test/webkit/add-recovery.js
@@ -22,10 +22,22 @@
 // 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 speculation recovery of destructive additions on unboxed integers works."
 );
 
-Object.defineProperty(Array.prototype, 0, { writable: false });
-shouldBe("[42].concat()", "[42]");
+function destructiveAddForBoxedInteger(a,b,c) {
+    var a_ = a.x;
+    var d = a_ + b;
+    return c + d + b;
+}
 
+// warm-up foo to be integer
+for (var i = 0; i < 100; ++i) {
+    destructiveAddForBoxedInteger({x:1}, 2, 3);
+}
 
+shouldBe("destructiveAddForBoxedInteger({x:1}, 2, 4)", "9");
+shouldBe("destructiveAddForBoxedInteger({x:2147483647}, 2, 4)", "2147483655");
+shouldBe("destructiveAddForBoxedInteger({x:2}, 2147483647, 4)", "4294967300");
+shouldBe("destructiveAddForBoxedInteger({x:2147483647}, 2147483647, 4)", "6442450945");
+shouldBe("destructiveAddForBoxedInteger({x:1}, 2, 2147483647)", "2147483652");