RFR: 8271886: mark hotspot runtime/InvocationTests tests which ignore external VM flags

[Coleen Phillimore]

On Wed, 4 Aug 2021 18:18:40 GMT, Igor Ignatyev <iignatyev at openjdk.org> wrote:

> Hi all,
> 
> could you please review this patch that adds `@requires vm.flagless` to all the `runtime/InvocationTests` tests as they ignore external VM flags?
> 
> Thanks,
> -- Igor

Ok, plus trivial.

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Marked as reviewed by coleenp (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/4997