RFR: 8266188: mark hotspot compiler/cpuflags tests which ignore VM flags

[Igor Ignatyev]

On Wed, 28 Apr 2021 06:59:46 GMT, Igor Ignatyev <iignatyev at openjdk.org> wrote:

> Hi all,
> 
> could you please review this small and trivial patch that adds `@requires vm.flagless` to `compiler/cpuflags ` tests that ignore VM flags?
> 
> Thanks,
> -- Igor

Christian, Tobias, thank you for your reviews.

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PR: https://git.openjdk.java.net/jdk/pull/3752