Bug 897926 - IonMonkey: Don't add osr typebarriers for aliased vars, r=jandem
Bug 912496 - Store source file names and info strings (identified by pointer) only once in tracelogging.log and refer to them by auto-incrementing id after that. r=h4writer

--HG--
extra : rebase_source : 29533698d6a36ed17d1c7e1b728480fcb9325301