docs(angular.toJson): add missing param type
Reference: [JSON.stringify](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify). Closes #15156
M
Matt Gilson committed
f1cc58c7d282d48a9b23b90f1cc5e5b2bc9f296e
Parent: e1e2fe1
Committed by Georgios Kalpakas <kalpakas.g@gmail.com>
on 9/19/2016, 4:06:23 PM