[Persistence] Break promise cycle

Break cyclical dependency in Promises that was causing persistence
to fall into an unresolvable state after overwrite, WTD-1033.

platform/persistence/queue/src/PersistenceQueueHandler.js

@@ -50,7 +50,8 @@ define(
                 // Handle any failures from the full operation
                 function handleFailure(value) {
                     return failures.length > 0 ?
-                            failureHandler.handle(failures) : value;
+                            failureHandler.handle(failures) :
+                            value;
                 }
 
                 // Try to persist everything, then handle any failures