put js accessor ics behind a flags until fixed

src/ic.cc

Index: src/ic.cc
diff --git a/src/ic.cc b/src/ic.cc
index 9724c446e1f4d8e640ed55c204b9a7f7b2224c37..7211ad91679dc199abc4b704406731efa13a10c7 100644
--- a/src/ic.cc
+++ b/src/ic.cc
@@ -1360,7 +1360,8 @@ Handle<Code> LoadIC::ComputeLoadHandler(LookupResult* lookup,
         Handle<JSFunction> function = Handle<JSFunction>::cast(getter);
         CallOptimization call_optimization(function);
         if (call_optimization.is_simple_api_call() &&
-            call_optimization.IsCompatibleReceiver(*receiver)) {
+            call_optimization.IsCompatibleReceiver(*receiver) &&
+            FLAG_js_accessor_ics) {
           return isolate()->stub_cache()->ComputeLoadCallback(
               name, receiver, holder, call_optimization);
         }
@@ -1568,7 +1569,8 @@ Handle<Code> KeyedLoadIC::ComputeLoadHandler(LookupResult* lookup,
         Handle<JSFunction> function = Handle<JSFunction>::cast(getter);
         CallOptimization call_optimization(function);
         if (call_optimization.is_simple_api_call() &&
-            call_optimization.IsCompatibleReceiver(*receiver)) {
+            call_optimization.IsCompatibleReceiver(*receiver) &&
+            FLAG_js_accessor_ics) {
           return isolate()->stub_cache()->ComputeKeyedLoadCallback(
               name, receiver, holder, call_optimization);
         }
@@ -1834,7 +1836,8 @@ Handle<Code> StoreIC::ComputeStoreMonomorphic(LookupResult* lookup,
         Handle<JSFunction> function = Handle<JSFunction>::cast(setter);
         CallOptimization call_optimization(function);
         if (call_optimization.is_simple_api_call() &&
-            call_optimization.IsCompatibleReceiver(*receiver)) {
+            call_optimization.IsCompatibleReceiver(*receiver) &&
+            FLAG_js_accessor_ics) {
           return isolate()->stub_cache()->ComputeStoreCallback(
               name, receiver, holder, call_optimization, strict_mode);
         }