JRuby's the only JVM language already making use of invokedynamic isn't it? Neither Groovy nor Clojure have implementations using it, and of course Java and Scala are statically typed languages.
However, Oracle is working on a JavaScript implementation that leverages it: http://www.wiki.jvmlangsummit.com/images/c/ce/Nashorn.pdf. See also https://github.com/dynjs/dyn.js, another incipient JavaScript implementation.