hg: lambda/lambda/jdk: Refactor Collector API (again)

[brian.goetz at oracle.com]

Changeset: d646778e497d
Author:    briangoetz
Date:      2013-03-15 18:30 -0400
URL:       http://hg.openjdk.java.net/lambda/lambda/jdk/rev/d646778e497d

Refactor Collector API (again)

! src/share/classes/java/util/stream/Collector.java
! src/share/classes/java/util/stream/Collectors.java
! src/share/classes/java/util/stream/ReduceOps.java
! src/share/classes/java/util/stream/ReferencePipeline.java
! test-ng/tests/org/openjdk/tests/java/util/stream/GroupByOpTest.java
! test-ng/tests/org/openjdk/tests/java/util/stream/ReduceByOpTest.java
! test-ng/tests/org/openjdk/tests/java/util/stream/TabulatorsTest.java