Merge experimental/a64 to bleeding_edge.

test/mjsunit/function-arguments-duplicate.js

Index: test/mjsunit/function-arguments-duplicate.js
diff --git a/test/mjsunit/recursive-store-opt.js b/test/mjsunit/function-arguments-duplicate.js
similarity index 90%
copy from test/mjsunit/recursive-store-opt.js
copy to test/mjsunit/function-arguments-duplicate.js
index fb2649248dbabc642f864f671d0ce2273ad44bd7..80f03a106b30a7e2f984a83b9d54b2edd8fb840a 100644
--- a/test/mjsunit/recursive-store-opt.js
+++ b/test/mjsunit/function-arguments-duplicate.js
@@ -25,17 +25,12 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-// Flags: --allow-natives-syntax
+// Execises ArgumentsAccessStub::GenerateNewNonStrictSlow.
 
-function g() {
-  this.x = this;
+function f(a, a) {
+  assertEquals(2, a);
+  assertEquals(1, arguments[0]);
+  assertEquals(2, arguments[1]);
 }
 
-function f() {
-  return new g();
-}
-
-f();
-f();
-%OptimizeFunctionOnNextCall(f);
-f();
+f(1, 2);