RFR: 8249834: java/util/ArrayList/Bug8146568.java and j/u/Vector/Bug8148174.java use @ignore w/o bug-id [v2]

[Jaikiran Pai]

On Fri, 8 Jul 2022 21:53:45 GMT, Bill Huang <duke at openjdk.org> wrote:

>> Tests Bug8146568 and Bug8148174 were disabled for high memory consumption, over 17G. This is a task to re-enable these two tests by marking them as manual tests.
>
> Bill Huang has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Added missing backslash in jdk/TEST.groups

Hello Bill,
The change looks fine to me.

I wasn't aware that a `jdk_core_manual` test group existed. Before merging, please do run a test which exercises either `jdk_core_manual` or `jdk_core_manual_no_input` test group, to make sure this change works fine.

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Marked as reviewed by jpai (Reviewer).

PR: https://git.openjdk.org/jdk/pull/9404