Well, while I do think TH has some masochistic tendencies (as this past summer clearly proved) I doubt he is suicidal.

Anyway, TH was in OZ at the time of this photo https://www.instagram.com/p/BMLgP-EgEWS/
but according to this article he didn't attend Hemsworth's wrap up party http://www.goldcoastbulletin.com.au/entertainment/thor-star-chris-hemsworth-gave-wrap-party-a-miss-as-first-footage-features-in-dr-strange/news-story/31ae13836932799832ad2465369995d9