Review request for JDK-8139270: Drastically reduce memory footprint of ChainedCallSite

[Attila Szegedi]

Please review JDK-8139270 "Drastically reduce memory footprint of 
ChainedCallSite" at <http://cr.openjdk.java.net/~attila/8139270/webrev.jdk9> 
for <https://bugs.openjdk.java.net/browse/JDK-8139270>

Thanks,
  Attila.