[foreign-memaccess+abi] RFR: 8277945: Use snippets in jdk.incubator.foreign API documentation [v4]

[Athijegannathan Sundararajan]

On Wed, 1 Dec 2021 17:24:06 GMT, Julia Boes <jboes at openjdk.org> wrote:

>> This change replaces `<pre>{@code ...}</pre>` blocks with the new `@snippet` tag.
>
> Julia Boes has updated the pull request incrementally with one additional commit since the last revision:
> 
>   use lang=c for C snippet

Marked as reviewed by sundar (Committer).

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PR: https://git.openjdk.java.net/panama-foreign/pull/621