Check for scheduled exceptions after a failed-access-check callback.

src/handles.cc

Index: src/handles.cc
diff --git a/src/handles.cc b/src/handles.cc
index fc45aaa8b6e0169b70672fd2dfde691813a66849..c02801f735189f6d03c25464803fd6f7cf62a3af 100644
--- a/src/handles.cc
+++ b/src/handles.cc
@@ -650,6 +650,10 @@ Handle<FixedArray> GetKeysInFixedArrayFor(Handle<JSReceiver> object,
                                  isolate->heap()->undefined_value(),
                                  v8::ACCESS_KEYS)) {
       isolate->ReportFailedAccessCheck(*current, v8::ACCESS_KEYS);
+      if (isolate->has_scheduled_exception()) {
+        isolate->PromoteScheduledException();
+        *threw = true;
+      }
       break;
     }