hg: amber/amber: issue an error if a type in the permits list refers to declaring class or a supertype

[vicente.romero at oracle.com]

Changeset: 0988d6372138
Author:    vromero
Date:      2020-02-26 23:48 -0500
URL:       https://hg.openjdk.java.net/amber/amber/rev/0988d6372138

issue an error if a type in the permits list refers to declaring class or a supertype

! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Attr.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/resources/compiler.properties
! src/jdk.compiler/share/classes/com/sun/tools/javac/tree/Pretty.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/tree/TreeInfo.java