hg: build-infra/jdk8: 2 new changesets

[erik.joelsson at oracle.com]

Changeset: 561bf6a5976a
Author:    erikj
Date:      2012-12-11 15:52 +0100
URL:       http://hg.openjdk.java.net/build-infra/jdk8/rev/561bf6a5976a

Enable comparing of two build-infra builds.

! common/bin/compare.sh

Changeset: 0ee94317f570
Author:    erikj
Date:      2012-12-11 15:55 +0100
URL:       http://hg.openjdk.java.net/build-infra/jdk8/rev/0ee94317f570

Improving do nothing rebuild on windows by 35%

! common/makefiles/IdlCompilation.gmk
! common/makefiles/JavaCompilation.gmk
! common/makefiles/MakeBase.gmk
! common/makefiles/NativeCompilation.gmk