hg: jdk9/hs-rt: 8139256: Add Makefile target to run internal VM tests

[erik.helin at oracle.com]

Changeset: 61ca9d7b1d76
Author:    ehelin
Date:      2015-10-21 13:39 +0200
URL:       http://hg.openjdk.java.net/jdk9/hs-rt/rev/61ca9d7b1d76

8139256: Add Makefile target to run internal VM tests
Reviewed-by: erikj, ihse

! make/Main.gmk