hg: jdk9/dev: 8072842: Add support for building native JTReg tests

[magnus.ihse.bursie at oracle.com]

Changeset: 23e62d3d9be0
Author:    ihse
Date:      2015-02-27 11:56 +0100
URL:       http://hg.openjdk.java.net/jdk9/dev/rev/23e62d3d9be0

8072842: Add support for building native JTReg tests
Reviewed-by: erikj, sla

! make/Main.gmk
! make/MakeHelpers.gmk
! make/common/MakeBase.gmk
+ make/common/TestFilesCompilation.gmk
! make/jprt.properties