RFR: 8250961: Move Universe::update_heap_info_at_gc to CollectedHeap

[Stefan Karlsson]

On Sun, 6 Sep 2020 07:00:36 GMT, Aditya Mandaleeka <adityam at openjdk.org> wrote:

> This is a small refactoring that moves `update_heap_info_at_gc()` and related members to `CollectedHeap`. There should
> be no behavioral change.
> jdk/hotspot tier1 passed
> 
> JBS: https://bugs.openjdk.java.net/browse/JDK-8250961

src/hotspot/share/gc/shared/collectedHeap.hpp line 443:

> 441:   size_t _heap_capacity_at_last_gc;
> 442:   size_t _heap_used_at_last_gc;
> 443:

These should be initialized in the constructor.

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PR: https://git.openjdk.java.net/jdk/pull/27