hg: jdk9/hs-comp: 8148159: [TESTBUG] TestCompilerDirectivesCompatibility tests fails on non-tiered server VMs

[nils.eliasson at oracle.com]

Changeset: 42f50a15674f
Author:    neliasso
Date:      2016-02-25 10:43 +0100
URL:       http://hg.openjdk.java.net/jdk9/hs-comp/rev/42f50a15674f

8148159: [TESTBUG] TestCompilerDirectivesCompatibility tests fails on non-tiered server VMs
Summary: Add whitebox for checking available compilers
Reviewed-by: kvn

! test/lib/sun/hotspot/WhiteBox.java