[turbofan] Call ArgumentsAccessStub to materialize arguments.

src/code-stubs.h

Index: src/code-stubs.h
diff --git a/src/code-stubs.h b/src/code-stubs.h
index f793e6e5d9efb0001967f3a2833d933259ec347c..3c1c521f5c4bd7e0d179c67bc6a263ee00656d0e 100644
--- a/src/code-stubs.h
+++ b/src/code-stubs.h
@@ -1894,8 +1894,9 @@ class ArgumentsAccessStub: public PlatformCodeStub {
   CallInterfaceDescriptor GetCallInterfaceDescriptor() const override {
     if (type() == READ_ELEMENT) {
       return ArgumentsAccessReadDescriptor(isolate());
+    } else {
+      return ArgumentsAccessNewDescriptor(isolate());
     }
-    return ContextOnlyDescriptor(isolate());
   }
 
  private: