hg: jdk10/hs: 8189731: Disable CFLH when there are no transformers

[serguei.spitsyn at oracle.com]

Changeset: d85284ccd1bd
Author:    sspitsyn
Date:      2017-11-03 17:09 -0700
URL:       http://hg.openjdk.java.net/jdk10/hs/rev/d85284ccd1bd

8189731: Disable CFLH when there are no transformers
Summary: Enable CFLH only when there are transformers
Reviewed-by: sspitsyn, alanb
Contributed-by: ben_walsh at uk.ibm.com

! make/mapfiles/libinstrument/mapfile-vers
! src/java.instrument/share/classes/sun/instrument/InstrumentationImpl.java
! src/java.instrument/share/native/libinstrument/InstrumentationImplNativeMethods.c
! src/java.instrument/share/native/libinstrument/InvocationAdapter.c
! src/java.instrument/share/native/libinstrument/JPLISAgent.c
! src/java.instrument/share/native/libinstrument/JPLISAgent.h