RFR: 8164358: [JVMCI] expose Hotspot intrinsics and HotSpotIntrinsicCandidate info to JVMCI compilers

[Doug Simon]

Please review this change which allows JVMCI compilers to see what intrinsics are defined by the VM and which methods have been annotated by HotSpotIntrisicCandidate.

https://bugs.openjdk.java.net/browse/JDK-8164358
http://cr.openjdk.java.net/~dnsimon/8164358/

Thanks,

-Doug