Migrated several tests from blink to V8 repository.

test/webkit/dfg-inline-arguments-become-double.js

Index: test/webkit/dfg-inline-arguments-become-double.js
diff --git a/test/webkit/concat-while-having-a-bad-time.js b/test/webkit/dfg-inline-arguments-become-double.js
similarity index 68%
copy from test/webkit/concat-while-having-a-bad-time.js
copy to test/webkit/dfg-inline-arguments-become-double.js
index dfda1e08a0b36194b787a44ee12a9693acd8aeaf..b7db7ec002f31e92cf82c6f8b5d23f269a7da83c 100644
--- a/test/webkit/concat-while-having-a-bad-time.js
+++ b/test/webkit/dfg-inline-arguments-become-double.js
@@ -22,10 +22,33 @@
 // 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 inlining preserves function.arguments functionality if the arguments are reassigned to refer to an int32."
 );
 
-Object.defineProperty(Array.prototype, 0, { writable: false });
-shouldBe("[42].concat()", "[42]");
+function foo() {
+    return bar.arguments;
+}
 
+function bar(a,b,c) {
+    b = 42.5;
+    return foo(a,b,c);
+}
 
+function baz(a,b,c) {
+    return bar(a,b,c);
+}
+
+function argsToStr(args) {
+    var str = args + ": ";
+    for (var i = 0; i < args.length; ++i) {
+        if (i)
+            str += ", ";
+        str += args[i];
+    }
+    return str;
+}
+
+for (var __i = 0; __i < 200; ++__i)
+    shouldBe("argsToStr(baz(\"a\" + __i, \"b\" + __i, \"c\" + __i))", "\"[object Arguments]: a" + __i + ", 42.5, c" + __i + "\"");
+
+var successfullyParsed = true;