hg: jdk/sandbox: 8194667: Regex: Serialization doesn't work with match flags

[chris.hegarty at oracle.com]

Changeset: 7f11a1699ef6
Author:    sherman
Date:      2018-01-12 14:05 -0800
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/7f11a1699ef6

8194667: Regex: Serialization doesn't work with match flags
Reviewed-by: rriggs

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