RFR: 8294314: Minimize disabled warnings in hotspot [v9]

Wed Oct 12 11:04:14 UTC 2022

On Wed, 12 Oct 2022 10:35:08 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> @shipilev So you want me to integrate this first, and then you follow up with your fixes?
>
> Hey @magicus, are you going forward with this PR, or?

@shipilev In a "tenth time's the charm" spirit, here's what I do think is actually a PR that can be integrated. 

(This one was really messy, both due to me being a bit sloppy and too trigger-happy at times, and due to the complex situation of changing warnings across multiple combinations of variants, compilers, platforms, etc.)

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PR: https://git.openjdk.org/jdk/pull/10414