RFR: 8358694: VM asserts if CodeCacheSegmentSize is not a power of 2

[Aleksey Shipilev]

On Tue, 10 Jun 2025 04:46:43 GMT, Amit Kumar <amitkumar at openjdk.org> wrote:

> Makes sure that JVM exits gracefully when `CodeCacheSegmentSize` is not a power of 2.

There is already `CodeCacheSegmentSizeConstraintFunc` that verifies the flag values. Move the check there?

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Changes requested by shade (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/25708#pullrequestreview-2912518138