hg: amber/amber: updating preview feature comment at TypeAnnotation

[vicente.romero at oracle.com]

Changeset: 89f7cdb265cf
Author:    vromero
Date:      2019-12-03 18:37 -0500
URL:       https://hg.openjdk.java.net/amber/amber/rev/89f7cdb265cf

updating preview feature comment at TypeAnnotation

! src/java.base/share/classes/sun/reflect/annotation/TypeAnnotation.java
! src/jdk.compiler/share/classes/com/sun/source/tree/Tree.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/tree/JCTree.java