hg: lambda/lambda/jdk: Rename PipelineHelper.getHeadShape to getSourceShape.

[paul.sandoz at oracle.com]

Changeset: 403a34d53eae
Author:    psandoz
Date:      2013-05-06 18:39 +0200
URL:       http://hg.openjdk.java.net/lambda/lambda/jdk/rev/403a34d53eae

Rename PipelineHelper.getHeadShape to getSourceShape.

! src/share/classes/java/util/stream/AbstractPipeline.java
! src/share/classes/java/util/stream/PipelineHelper.java
! src/share/classes/java/util/stream/SliceOps.java