RFR: JDK-8308049: Refactor nested class declarations in FdLibm.java

[Stuart Marks]

On Sun, 14 May 2023 23:00:14 GMT, Joe Darcy <darcy at openjdk.org> wrote:

> Make the nested classes inside FdLibm.java consistently package-access, static and final.

Changes look good.

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Marked as reviewed by smarks (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/13972#pullrequestreview-1427119830