hg: jdk8/tl/jdk: 8023647: "abc1c".matches("(\\w)+1\\1")) returns false

[xueming . shen]

Changeset: 3f6777cbfe69
Author:    sherman
Date:      2013-08-27 12:54 -0700
URL:       http://hg.openjdk.java.net/jdk8/tl/jdk/rev/3f6777cbfe69

8023647: "abc1c".matches("(\\w)+1\\1")) returns false
Summary: to correct the wrong GroupCurly group index backoff code
Reviewed-by: alanb

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