git: openjdk/panama-foreign: foreign-jextract: 8258248: jextract should generate jdk 16 compatible code

[Athijegannathan Sundararajan]

Changeset: f4da3281
Author:    Athijegannathan Sundararajan <sundar at openjdk.org>
Date:      2020-12-14 16:56:26 +0000
URL:       https://git.openjdk.java.net/panama-foreign/commit/f4da3281

8258248: jextract should generate jdk 16 compatible code

Reviewed-by: jvernee

! src/jdk.incubator.jextract/share/classes/jdk/internal/jextract/impl/ClassConstantHelper.java
! src/jdk.incubator.jextract/share/classes/jdk/internal/jextract/impl/Writer.java