hg: jdk/sandbox: 8235812: Unicode linebreak with quantifier does not match valid input

[chris.hegarty at oracle.com]

Changeset: ae7a326448fa
Author:    igerasim
Date:      2020-02-10 16:10 -0800
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/ae7a326448fa

8235812: Unicode linebreak with quantifier does not match valid input
Reviewed-by: rriggs

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