Handle retry-after-gc failures within LoadIC::Load and StoreIC::Store.

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index 3ca89f08eab202ebf9e14531795a7fed54cd3f60..f560d94067c4b735578d9100f8efeeb3267b1895 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -1096,6 +1096,13 @@ class Object : public MaybeObject {
                                     Handle<Name> key,
                                     PropertyAttributes* attributes);
 
+  MUST_USE_RESULT static MaybeObject* GetPropertyOrFail(
+      Handle<Object> object,
+      Handle<Object> receiver,
+      LookupResult* result,
+      Handle<Name> key,
+      PropertyAttributes* attributes);
+
   MUST_USE_RESULT MaybeObject* GetProperty(Object* receiver,
                                            LookupResult* result,
                                            Name* key,
@@ -1569,6 +1576,15 @@ class JSReceiver: public HeapObject {
                                     Handle<Object> value,
                                     PropertyAttributes attributes,
                                     StrictModeFlag strict_mode);
+
+  MUST_USE_RESULT static MaybeObject* SetPropertyOrFail(
+      Handle<JSReceiver> object,
+      Handle<Name> key,
+      Handle<Object> value,
+      PropertyAttributes attributes,
+      StrictModeFlag strict_mode,
+      StoreFromKeyed store_from_keyed = MAY_BE_STORE_FROM_KEYED);
+
   // Can cause GC.
   MUST_USE_RESULT MaybeObject* SetProperty(
       Name* key,