hg: jdk9/sandbox: Split out FindTests.gmk.

[magnus.ihse.bursie at oracle.com]

Changeset: e0b010c9fe81
Author:    ihse
Date:      2017-02-24 10:47 +0100
URL:       http://hg.openjdk.java.net/jdk9/sandbox/rev/e0b010c9fe81

Split out FindTests.gmk.

! make/FindTests.gmk < make/RunTests.gmk
! make/Main.gmk
+ make/RunTests.gmk