hg: lambda/lambda/jdk: Add identity argument to Collectors.reducing

[brian.goetz at oracle.com]

Changeset: a3c75453c6c1
Author:    briangoetz
Date:      2013-04-08 13:05 -0400
URL:       http://hg.openjdk.java.net/lambda/lambda/jdk/rev/a3c75453c6c1

Add identity argument to Collectors.reducing

! src/share/classes/java/util/stream/Collectors.java
! test-ng/bootlib/java/util/stream/OpTestCase.java
! test-ng/tests/org/openjdk/tests/java/util/stream/ReduceByOpTest.java
! test-ng/tests/org/openjdk/tests/java/util/stream/TabulatorsTest.java