RFR: 8285951: Replace Algorithms.eatMemory(...) with WB.fullGC() in vmTestbase_vm_gc_ref tests [v3]

[Kim Barrett]

On Mon, 9 May 2022 02:07:37 GMT, Leonid Mesnik <lmesnik at openjdk.org> wrote:

>> remainging weak/soft/phantom reference tests are updated to use WB.fullGC()
>> 
>> The TEST.properties are removed for single-threaded tests.
>
> Leonid Mesnik has updated the pull request incrementally with one additional commit since the last revision:
> 
>   removed incorrect comment

Still looks good.

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Marked as reviewed by kbarrett (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/8474