[jdk17u-dev] RFR: 8278146: G1: Rework VM_G1Concurrent VMOp to clearly identify it as pause

[Aleksey Shipilev]

On Mon, 21 Nov 2022 14:55:47 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> Clean backport to improve detailed VM diagnostics.
> 
> @tschatzl, are you good with this in 17u?
> 
> Additional testing:
>  - [x] Linux x86_64 fastdebug `tier1`

@tschatzl, want to ack this? :)

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PR: https://git.openjdk.org/jdk17u-dev/pull/910