hg: jdk9/dev: 8166948: Exploded image too slow to be usable

[erik.joelsson at oracle.com]

Changeset: 60addd60b367
Author:    erikj
Date:      2016-10-04 13:34 +0200
URL:       http://hg.openjdk.java.net/jdk9/dev/rev/60addd60b367

8166948: Exploded image too slow to be usable
Reviewed-by: alanb, mchung, ihse

+ make/ExplodedImageOptimize.gmk
! make/Main.gmk