hg: amber/amber: manual merge with default

[vicente.romero at oracle.com]

Changeset: 290707e559a4
Author:    vromero
Date:      2020-01-02 12:44 -0500
URL:       https://hg.openjdk.java.net/amber/amber/rev/290707e559a4

manual merge with default

! src/hotspot/share/classfile/vmSymbols.hpp
! src/jdk.compiler/share/classes/com/sun/tools/javac/code/Flags.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/code/Type.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Attr.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Check.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/jvm/ClassReader.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/resources/compiler.properties
! src/jdk.compiler/share/classes/com/sun/tools/javac/tree/JCTree.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/util/Names.java