Unify symbols sharing across native scripts and runtime.

src/runtime/runtime-debug.cc

Index: src/runtime/runtime-debug.cc
diff --git a/src/runtime/runtime-debug.cc b/src/runtime/runtime-debug.cc
index 1cd524f17c64e882141810686f730a46363d14d8..41372e46946314cfb1eee5ecd624c3b02ecd9313 100644
--- a/src/runtime/runtime-debug.cc
+++ b/src/runtime/runtime-debug.cc
@@ -221,7 +221,7 @@ MaybeHandle<JSArray> Runtime::GetInternalProperties(Isolate* isolate,
     Handle<JSObject> promise = Handle<JSObject>::cast(object);
 
     Handle<Object> status_obj =
-        DebugGetProperty(promise, isolate->promise_status());
+        DebugGetProperty(promise, isolate->factory()->promise_status_symbol());
     RUNTIME_ASSERT_HANDLIFIED(status_obj->IsSmi(), JSArray);
     const char* status = "rejected";
     int status_val = Handle<Smi>::cast(status_obj)->value();
@@ -244,7 +244,7 @@ MaybeHandle<JSArray> Runtime::GetInternalProperties(Isolate* isolate,
     result->set(1, *status_str);
 
     Handle<Object> value_obj =
-        DebugGetProperty(promise, isolate->promise_value());
+        DebugGetProperty(promise, isolate->factory()->promise_value_symbol());
     Handle<String> promise_value =
         factory->NewStringFromAsciiChecked("[[PromiseValue]]");
     result->set(2, *promise_value);