Merge pull request #380 in G/fastr from ~LUKAS.STADLER_ORACLE.COM/fastr:update_truffle to master

* commit '854e16b1':
  update truffle revision

com.oracle.truffle.r.runtime/src/com/oracle/truffle/r/runtime/ffi/RFFIFactory.java

@@ -23,7 +23,6 @@
 package com.oracle.truffle.r.runtime.ffi;
 
 import com.oracle.truffle.api.CompilerDirectives.CompilationFinal;
-import com.oracle.truffle.r.runtime.Utils;
 import com.oracle.truffle.r.runtime.context.RContext;
 import com.oracle.truffle.r.runtime.context.RContext.ContextState;
 

mx.fastr/suite.py

@@ -28,7 +28,7 @@ suite = {
     "suites" : [
             {
                "name" : "truffle",
-               "version" : "981ccb7930e8746c0231b99fc23a7f0b71a1aada",
+               "version" : "af21c6632dbc4e8c48cd25d0b7d623d379c888e6",
                "urls" : [
                     {"url" : "https://github.com/graalvm/truffle", "kind" : "git"},
                     {"url" : "https://curio.ssw.jku.at/nexus/content/repositories/snapshots", "kind" : "binary"},