hg: build-infra/jdk8: Move all functions that are used only by top-level Main.gmk from MakeBase.gmk to MakeHelpers.gmk.

[magnus.ihse.bursie at oracle.com]

Changeset: 16e9495017e7
Author:    ihse
Date:      2012-10-24 23:47 +0200
URL:       http://hg.openjdk.java.net/build-infra/jdk8/rev/16e9495017e7

Move all functions that are used only by top-level Main.gmk from MakeBase.gmk to MakeHelpers.gmk.

! common/makefiles/MakeBase.gmk
! common/makefiles/MakeHelpers.gmk