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

[maurizio.cimadamore at oracle.com]

Changeset: 40865a85217a
Author:    mcimadamore
Date:      2020-02-18 18:05 +0000
URL:       https://hg.openjdk.java.net/amber/amber/rev/40865a85217a

Automatic merge with sealed-types