hg: jigsaw/jake/nashorn: 8153211: Convert build tool to use the new -XaddExports syntax in bootcycle build

[mandy . chung]

Changeset: 38fb8799f2c1
Author:    mchung
Date:      2016-03-31 11:50 -0700
URL:       http://hg.openjdk.java.net/jigsaw/jake/nashorn/rev/38fb8799f2c1

8153211: Convert build tool to use the new -XaddExports syntax in bootcycle 
build
Reviewed-by: alanb

! make/BuildNashorn.gmk