[gjs/ewlsh/fix-barried-get-in-rooting] Use unbarried get after potential garbage collection

[Evan Welsh <ewlsh src gnome org>]

commit 464adf6f780edc48c0dff264135a20c54972be37
Author: Evan Welsh <contact evanwelsh com>
Date:   Sun Jul 25 05:02:04 2021 -0700

    Use unbarried get after potential garbage collection

 gjs/jsapi-util-root.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gjs/jsapi-util-root.h b/gjs/jsapi-util-root.h
index 5433a09b..cf6369a7 100644
--- a/gjs/jsapi-util-root.h
+++ b/gjs/jsapi-util-root.h
@@ -276,7 +276,7 @@ class GjsMaybeOwned {
 
         /* Prevent the thing from being garbage collected while it is in neither
          * m_heap nor m_root */
-        JS::Rooted<T> thing(cx, m_heap);
+        JS::Rooted<T> thing(cx, m_heap.unbarrieredGet());
 
         reset();
         root(cx, thing, notify, data);