RFR: 8287906: Rewrite of GitHub Actions (GHA) sanity tests [v4]

[Magnus Ihse Bursie]

On Fri, 10 Jun 2022 07:09:28 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> Magnus Ihse Bursie has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Apparently that was not a legal reference to actions/checkout. Try another way.
>
> .github/actions/get-bootjdk/action.yml line 26:
> 
>> 24: #
>> 25: 
>> 26: name: 'Get BootJDK'
> 
> Here and later, polishing: "BootJDK" -> "boot JDK"?

I think we've mostly been using "BootJDK" as a specialized term in the build system, but we've not been very consistent about it: 

ihse at mercurius:~/git/jdk-ALT/open/make$ gr -i "Boot JDK" | wc
      61     673    5606
ihse at mercurius:~/git/jdk-ALT/open/make$ gr -i BootJDK | wc
      79     298    5947


but I can switch it out to `Boot JDK` if that makes you happier.

> .github/actions/get-msys/action.yml line 26:
> 
>> 24: #
>> 25: 
>> 26: name: 'Get msys'
> 
> Here and later, polishing: call it consistently "msys2" or "MSYS2"?

The official name is `MSYS2` so I've tried to use that, unless lower case were needed/preferred to keep things consistent. I'll check over the code to see what places I've missed. (I agree that in this description it should definitely be MSYS2).

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PR: https://git.openjdk.org/jdk/pull/9063