git: openjdk/jdk: 8309134: Augment test/langtools/tools/javac/versions/Versions.java for JDK 21 language changes

[Joe Darcy]

Changeset: cb40db05
Author:    Joe Darcy <darcy at openjdk.org>
Date:      2023-05-30 21:58:50 +0000
URL:       https://git.openjdk.org/jdk/commit/cb40db052cef5e009fca2eb2d2287baedbad81e6

8309134: Augment test/langtools/tools/javac/versions/Versions.java for JDK 21 language changes

Reviewed-by: jjg

! test/langtools/tools/javac/versions/Versions.java