RFR: 8291360: Create entry points to expose low-level class file information [v3]

[Harold Seigel]

On Tue, 2 Aug 2022 06:36:54 GMT, David Holmes <dholmes at openjdk.org> wrote:

>> No particular reason for choosing 59 other than it's different and less than 64.  Test case Version64_65535 has a non-zero minor version.
>
> I think we should be testing for other real classfile versions that may be encountered, such as 45.3

I added a test case for 45.3.

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PR: https://git.openjdk.org/jdk/pull/9688