RFR: 8256747: GitHub Actions: decouple the hotspot build-only jobs from Linux x64 testing [v2]

[Robin Westberg]

On Thu, 26 Nov 2020 16:25:35 GMT, Magnus Ihse Bursie <ihse at openjdk.org> wrote:

>>> That sounds very good indeed! I did not think it was possible for Skara to access the Checks area, but if it does, it's really where this belong.
>> 
>> I've tried this out a bit in the playground now - perhaps something like this: https://github.com/openjdk/playground/pull/77
>
> @rwestberg Looks sooo much better! What happens if a build fails?

I think there were a few failing test jobs in the current state of the playground, so should be visible in a little while!

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PR: https://git.openjdk.java.net/jdk/pull/1350