hg: amber/amber: Automatic merge with sealed-types

[maurizio.cimadamore at oracle.com]

Changeset: b14c57e9d2af
Author:    mcimadamore
Date:      2020-02-12 01:45 +0000
URL:       https://hg.openjdk.java.net/amber/amber/rev/b14c57e9d2af

Automatic merge with sealed-types

! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Attr.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/resources/compiler.properties
! test/langtools/tools/javac/sealed/SealedCompilationTests.java
! test/langtools/tools/javac/sealed/SealedDiffConfigurationsTest.java