RFR: 8271829: mark hotspot runtime/Throwable tests which ignore external VM flags

[Jie Fu]

On Wed, 4 Aug 2021 01:23:42 GMT, Igor Ignatyev <iignatyev at openjdk.org> wrote:

> Hi all,
> 
> could you please review the patch that adds `@requires vm.flagless` to three `runtime/Throwable` tests?
> 
> Thanks,
> -- Igor

Looks good and trivial.
Thanks.

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Marked as reviewed by jiefu (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/4985