hg: jdk/sandbox: Merge

[bradford.wetmore at oracle.com]

Changeset: 137a16d6d987
Author:    wetmore
Date:      2018-05-23 09:33 -0700
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/137a16d6d987

Merge

- test/jdk/java/lang/Character/Blocks.txt
- test/jdk/java/lang/Character/CheckBlocks.java
- test/jdk/java/lang/Character/TestISOControls.java