hg: jdk8/tl/jdk: 8006572: DoubleStream.sum() & DoubleSummaryStats implementations that reduce numerical errors

[joe.darcy at oracle.com]

Changeset: ca911e383e26
Author:    darcy
Date:      2013-12-01 23:35 -0800
URL:       http://hg.openjdk.java.net/jdk8/tl/jdk/rev/ca911e383e26

8006572: DoubleStream.sum() & DoubleSummaryStats implementations that reduce numerical errors
Reviewed-by: psandoz, mduigou

! src/share/classes/java/util/DoubleSummaryStatistics.java
! src/share/classes/java/util/stream/Collectors.java
! src/share/classes/java/util/stream/DoublePipeline.java
+ test/java/util/stream/TestDoubleSumAverage.java