Migrated several tests from blink to V8 repository.

test/webkit/dfg-other-branch.js

Index: test/webkit/dfg-other-branch.js
diff --git a/test/webkit/concat-while-having-a-bad-time.js b/test/webkit/dfg-other-branch.js
similarity index 74%
copy from test/webkit/concat-while-having-a-bad-time.js
copy to test/webkit/dfg-other-branch.js
index dfda1e08a0b36194b787a44ee12a9693acd8aeaf..6aa22dcc081d5cb1f61a5a2873677a76312cf27f 100644
--- a/test/webkit/concat-while-having-a-bad-time.js
+++ b/test/webkit/dfg-other-branch.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."
+"This tests that speculating other on a branch does not corrupt state."
 );
 
-Object.defineProperty(Array.prototype, 0, { writable: false });
-shouldBe("[42].concat()", "[42]");
+function foo(a) {
+    if (a.f)
+        return "yes";
+    else
+        return "no";
+}
 
+function bar(a) {
+    return !a.f;
+}
 
+for (var i = 0; i < 100; ++i)
+    foo({f:void(0)});
+
+for (var i = 0; i < 10; ++i)
+    shouldBe("foo({f:i})", i ? "\"yes\"" : "\"no\"");
+
+for (var i = 0; i < 100; ++i)
+    bar({f:void(0)});
+
+for (var i = 0; i < 10; ++i)
+    shouldBe("bar({f:i})", i ? "false" : "true");
+
+var successfullyParsed = true;