hg: jdk/sandbox: 8230829: Matcher matches a surrogate pair that crosses border of the region

[chris.hegarty at oracle.com]

Changeset: f63f50a4bf43
Author:    igerasim
Date:      2019-09-12 11:07 -0700
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/f63f50a4bf43

8230829: Matcher matches a surrogate pair that crosses border of the region
Reviewed-by: naoto

! src/java.base/share/classes/java/util/regex/Pattern.java
! test/jdk/java/util/regex/RegExTest.java