Add missing HandleScope

Review URL: http://codereview.chromium.org/7210056

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8509 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/ic.cc

@@ -1816,6 +1816,7 @@ MaybeObject* KeyedStoreIC::Store(State state,
         stub = non_strict_arguments_stub();
       } else if (!force_generic) {
         if (key->IsSmi() && (target() != non_strict_arguments_stub())) {
+          HandleScope scope(isolate());
           MaybeObject* maybe_stub = ComputeStub(receiver,
                                                 true,
                                                 strict_mode,