hg: graal/graal-jvmci-9/hotspot: added compile-time only JDK9_STUBS library to support compilation with JDK8 javac and Eclipse

[doug.simon at oracle.com]

Changeset: d32159f98906
Author:    Doug Simon <doug.simon at oracle.com>
Date:      2016-01-19 16:43 +0100
URL:       http://hg.openjdk.java.net/graal/graal-jvmci-9/hotspot/rev/d32159f98906

added compile-time only JDK9_STUBS library to support compilation with JDK8 javac and Eclipse

! .mx.jvmci/mx_jvmci.py
! .mx.jvmci/suite.py
! src/jdk.vm.ci/share/classes/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotJVMCIRuntime.java