Integrated: 8331573: Rename CollectedHeap::is_gc_active to be explicitly about STW GCs

[Aleksey Shipilev]

On Thu, 2 May 2024 14:40:35 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> `CollectedHeap::is_gc_active()` is confusing, since its name implies _any_ GC phase is running, while it actually only covers the STW GCs. It would be good to rename it for clarity. The freed-up name, `is_gc_active` could then be repurposed to track any (concurrent or STW) GC phase running. That would be useful to resolve [JDK-8331572](https://bugs.openjdk.org/browse/JDK-8331572).
> 
> Doing this rename separately guarantees we have caught and renamed all current uses.
> 
> Additional testing:
>  - [x] Linux AArch64 server fastdebug, `all`

This pull request has now been integrated.

Changeset: 1eec30a6
Author:    Aleksey Shipilev <shade at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/1eec30a6c03b7f4028405dc9bdb4d2a663b3987d
Stats:     64 lines in 27 files changed: 0 ins; 2 del; 62 mod

8331573: Rename CollectedHeap::is_gc_active to be explicitly about STW GCs

Reviewed-by: stefank, zgu, tschatzl, gli

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PR: https://git.openjdk.org/jdk/pull/19064