RFR: 8279547: [vectorapi] Enable vector cast tests after JDK-8278948

[Vladimir Kozlov]

On Thu, 6 Jan 2022 04:05:50 GMT, Quan Anh Mai <duke at openjdk.java.net> wrote:

> Hi,
> 
> This patch enables 2 vector cast operations that fail before.
> 
> Thank you very much.

Good. Let me test it.

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PR: https://git.openjdk.java.net/jdk/pull/6976