hg: jdk/sandbox: add test for equality with non-optional

[stuart.marks at oracle.com]

Changeset: ed0bfd119607
Author:    smarks
Date:      2018-03-28 23:43 -0700
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/ed0bfd119607

add test for equality with non-optional

! test/jdk/java/util/Optional/Basic.java