Merge pull request #631 in G/fastr from...

Merge pull request #631 in G/fastr from ~LUKAS.STADLER_ORACLE.COM/fastr:bugfix/rcallnode_empty to master

* commit 'ce332725':
  transferToInterpreter on REmpty in RCallNode

com.oracle.truffle.r.nodes/src/com/oracle/truffle/r/nodes/function/RCallNode.java

@@ -285,6 +285,7 @@ public abstract class RCallNode extends RCallBaseNode implements RSyntaxNode, RS
         Object dispatchObject = dispatchArgument.execute(frame);
         // Cannot dispatch on REmpty
         if (dispatchObject == REmpty.instance) {
+            CompilerDirectives.transferToInterpreter();
             throw RError.error(this, RError.Message.ARGUMENT_EMPTY, 1);
         }
         FrameSlot slot = dispatchTempSlot.initialize(frame, dispatchObject);