Fix issue with getOwnPropertySymbols and hidden properties

src/runtime.cc

Index: src/runtime.cc
diff --git a/src/runtime.cc b/src/runtime.cc
index 394deceaa8e82b3ea4b08ff0c2f159fbbf330325..c50b3c459bbd7443fb3cf7aa5e53c9dabd4502e3 100644
--- a/src/runtime.cc
+++ b/src/runtime.cc
@@ -5811,7 +5811,9 @@ RUNTIME_FUNCTION(MaybeObject*, Runtime_GetLocalPropertyNames) {
       }
     }
     next_copy_index += local_property_count[i];
-    if (jsproto->HasHiddenProperties()) {
+
+    // Hidden properties only show up if the filter does not skip strings.
+    if ((filter & STRING) == 0 && jsproto->HasHiddenProperties()) {
       hidden_strings++;
     }
     if (i < length - 1) {