Add `try` and `catch` to keywords
Add `try` and `catch` to keywords

BS3 commits: 9e50078321984b4c166c35dd1be7d98151219017

todc/todc-bootstrap,up2vs/todc-bootstrap,aaroncnhk/todc-bootstrap,mozillo/todc-bootstrap,2947721120/todc-bootstrap,ztx1491/todc-bootstrap,todc/todc-bootstrap,todc/todc-bootstrap,2947721120/googlebt4