RFR: 8u backport of JDK-8237499 JFR: Include stack trace in the ThreadStart event

[Severin Gehwolf]

On Tue, 2021-01-26 at 10:17 +0800, Yang Yi wrote:
> As mentioned[1] before, the minimized VM fails to build
> after JDK-8237499[2], this backport[3] solves the problem,
> it has only a few line changes.
> 
> Webrev: http://cr.openjdk.java.net/~ddong/yiyang/8239886/

Please create a separate review thread for this and adjust the subject
accordingly. It's a different bug (though, related).

Thanks,
Severin