RFR: 8319820: Use unnamed variables in the FFM implementation

[Maurizio Cimadamore]

On Fri, 10 Nov 2023 07:19:42 GMT, Per Minborg <pminborg at openjdk.org> wrote:

> This PR proposes to use unnamed variables now that they have become available in Java.
> 
> There is also a cosmetic cleanup making a switch rake smaller and where variables are pre-calculated rather than spreading expressions around.

Marked as reviewed by mcimadamore (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/16594#pullrequestreview-1725130496