Migrated several tests from blink to V8 repository.

test/webkit/dfg-store-unexpected-value-into-argument-and-osr-exit.js

Index: test/webkit/dfg-store-unexpected-value-into-argument-and-osr-exit.js
diff --git a/test/webkit/concat-while-having-a-bad-time.js b/test/webkit/dfg-store-unexpected-value-into-argument-and-osr-exit.js
similarity index 62%
copy from test/webkit/concat-while-having-a-bad-time.js
copy to test/webkit/dfg-store-unexpected-value-into-argument-and-osr-exit.js
index dfda1e08a0b36194b787a44ee12a9693acd8aeaf..1006c2840aeb6c45d44c243eadf0819cd15ae5aa 100644
--- a/test/webkit/concat-while-having-a-bad-time.js
+++ b/test/webkit/dfg-store-unexpected-value-into-argument-and-osr-exit.js
@@ -22,10 +22,43 @@
 // 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 store an unexpected value into an argument (where the original argument value was the expected one) and then OSR exit."
 );
 
-Object.defineProperty(Array.prototype, 0, { writable: false });
-shouldBe("[42].concat()", "[42]");
+function foo(x, o, p) {
+    x = o.f;
+    if (p) {
+        var result = o.g + x;
+        x = true; // Force x to not have a hoisted integer speculation.
+        return result;
+    } else
+        return o.g - x;
+}
 
+for (var i = 0; i < 200; ++i) {
+    var expected;
+    var p, f, g;
+    if (i < 150) {
+        f = 42;
+        g = 43;
+        if (i%2) {
+            p = true;
+            expected = 85;
+        } else {
+            p = false;
+            expected = 1;
+        }
+    } else {
+        f = 42.5;
+        g = 43;
+        if (i%2) {
+            p = true;
+            expected = 85.5;
+        } else {
+            p = false;
+            expected = 0.5;
+        }
+    }
+    shouldBe("foo(3, {f:f, g:g}, p)", "" + expected);
+}