hg: jdk/jdk: 8184692: add Pattern.asMatchPredicate

[paul.sandoz at oracle.com]

Changeset: 1ccf5fae9664
Author:    vtheeyarath
Date:      2018-04-16 11:21 -0700
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/1ccf5fae9664

8184692: add Pattern.asMatchPredicate
Reviewed-by: psandoz, rriggs

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