RFR: 8267431: Rename InstanceKlass::has_old_class_version to can_be_verified_at_dumptime

[Calvin Cheung]

On Tue, 25 May 2021 00:37:05 GMT, Ioi Lam <iklam at openjdk.org> wrote:

>> A simple patch for renaming the `InstanceKlass::has_old_class_version` function to `InstanceKlass::can_be_verified_at_dumptime`.
>> 
>> - [x] passed tier1, tier2 tests
>
> Looks good and trivial.

Thanks @iklam.

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PR: https://git.openjdk.java.net/jdk/pull/4176