hg: amber/amber: Automatic merge with records-and-sealed

[maurizio.cimadamore at oracle.com]

Changeset: 960e2b3680da
Author:    mcimadamore
Date:      2019-07-29 22:10 +0000
URL:       https://hg.openjdk.java.net/amber/amber/rev/960e2b3680da

Automatic merge with records-and-sealed