Migrated several tests from blink to V8 repository.

test/webkit/dfg-getter-throw.js

Index: test/webkit/dfg-getter-throw.js
diff --git a/test/webkit/concat-while-having-a-bad-time.js b/test/webkit/dfg-getter-throw.js
similarity index 70%
copy from test/webkit/concat-while-having-a-bad-time.js
copy to test/webkit/dfg-getter-throw.js
index dfda1e08a0b36194b787a44ee12a9693acd8aeaf..c77b33d06033008cc736b73f8d8c557edad4edac 100644
--- a/test/webkit/concat-while-having-a-bad-time.js
+++ b/test/webkit/dfg-getter-throw.js
@@ -22,10 +22,30 @@
 // 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 that DFG getter caching does not break the world if the getter throws an exception."
 );
 
-Object.defineProperty(Array.prototype, 0, { writable: false });
-shouldBe("[42].concat()", "[42]");
+function foo(o) {
+    return o.f;
+}
+
+function bar(o) {
+    try {
+        return "Returned result: " + foo(o);
+    } catch (e) {
+        return "Threw exception: " + e;
+    }
+}
+
+for (var i = 0; i < 200; ++i) {
+    var o = new Object();
+    o.__defineGetter__("f", function(){
+        if (i < 100)
+            return i;
+        else
+            throw "Oh hi, I'm an exception!";
+    });
+    shouldBe("bar(o)", i < 100 ? "\"Returned result: " + i + "\"" : "\"Threw exception: Oh hi, I'm an exception!\"");
+}