Always load data for access check callbacks

src/isolate.cc

Index: src/isolate.cc
diff --git a/src/isolate.cc b/src/isolate.cc
index baf7095b6a9fe2df5bde1e14b751a4c1681b7431..a274b6a2560e70c2ccff8095cb4ac50e229b693f 100644
--- a/src/isolate.cc
+++ b/src/isolate.cc
@@ -828,11 +828,11 @@ bool Isolate::MayAccess(Handle<Context> accessing_context,
     if (!access_check_info) return false;
     Object* fun_obj = access_check_info->callback();
     callback = v8::ToCData<v8::AccessCheckCallback>(fun_obj);
+    data = handle(access_check_info->data(), this);
     if (!callback) {
       fun_obj = access_check_info->named_callback();
       named_callback = v8::ToCData<v8::NamedSecurityCallback>(fun_obj);
       if (!named_callback) return false;
-      data = handle(access_check_info->data(), this);
     }
   }