RFR: 8351276: Prevent redundant computeValue calls when a chain of mappings becomes observed [v2]

[Nir Lisker]

On Wed, 2 Apr 2025 08:36:22 GMT, John Hendrikx <jhendrikx at openjdk.org> wrote:

>> 8351276: Prevent redundant computeValue calls when a chain of mappings becomes observed
>
> John Hendrikx has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Fix review comments

Marked as reviewed by nlisker (Reviewer).

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PR Review: https://git.openjdk.org/jfx/pull/1730#pullrequestreview-2736364293