[GR-2738] Update Truffle dependency.

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

 /*
- * Copyright (c) 2013, 2016, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2013, 2017, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -40,6 +40,7 @@ import com.oracle.truffle.r.nodes.function.PromiseHelperNode.PromiseCheckHelperN
 import com.oracle.truffle.r.runtime.Arguments;
 import com.oracle.truffle.r.runtime.ArgumentsSignature;
 import com.oracle.truffle.r.runtime.RError;
+import com.oracle.truffle.r.runtime.RInternalError;
 import com.oracle.truffle.r.runtime.Utils;
 import com.oracle.truffle.r.runtime.data.RArgsValuesAndNames;
 import com.oracle.truffle.r.runtime.data.RMissing;
@@ -233,7 +234,11 @@ public final class CallArgumentsNode extends RBaseNode implements UnmatchedArgum
                 index = flattenVarArgsObject(frame, varArgs, values, index);
                 vargsSymbolsIndex++;
             } else {
-                values[index] = arguments[i] == null ? RMissing.instance : arguments[i].execute(frame);
+                Object result = arguments[i] == null ? RMissing.instance : arguments[i].execute(frame);
+                if (CompilerDirectives.inInterpreter() && result == null) {
+                    throw RInternalError.shouldNotReachHere("invalid null in arguments");
+                }
+                values[index] = result;
                 index++;
             }
         }

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

@@ -162,6 +162,7 @@ public abstract class ClassHierarchyNode extends UnaryNode {
 
     @Fallback
     protected RStringVector getClassHr(Object obj) {
+        CompilerDirectives.transferToInterpreter();
         throw RInternalError.shouldNotReachHere("type: " + (obj == null ? "null" : obj.getClass().getSimpleName()));
     }
 }

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

@@ -253,6 +253,9 @@ public final class FunctionDefinitionNode extends RRootNode implements RSyntaxNo
             saveArguments.execute(frame);
             Object result = body.visibleExecute(frame);
             normalExit.enter();
+            if (CompilerDirectives.inInterpreter() && result == null) {
+                throw RInternalError.shouldNotReachHere("invalid null in result of " + this);
+            }
             return result;
         } catch (ReturnException ex) {
             if (returnTopLevelProfile.profile(ex.getTarget() == RArguments.getCall(frame))) {

com.oracle.truffle.r.runtime/src/com/oracle/truffle/r/runtime/nodes/RNode.java

@@ -22,10 +22,12 @@
  */
 package com.oracle.truffle.r.runtime.nodes;
 
+import com.oracle.truffle.api.CompilerDirectives;
 import com.oracle.truffle.api.dsl.TypeSystemReference;
 import com.oracle.truffle.api.frame.VirtualFrame;
 import com.oracle.truffle.api.instrumentation.Instrumentable;
 import com.oracle.truffle.api.nodes.UnexpectedResultException;
+import com.oracle.truffle.r.runtime.RInternalError;
 import com.oracle.truffle.r.runtime.data.RTypes;
 import com.oracle.truffle.r.runtime.data.RTypesGen;
 import com.oracle.truffle.r.runtime.nodes.instrumentation.RNodeWrapperFactory;
@@ -53,7 +55,11 @@ public abstract class RNode extends RBaseNode implements RInstrumentableNode {
      * does not start with "execute" so that the DSL does not treat it like an execute function.
      */
     public Object visibleExecute(VirtualFrame frame) {
-        return execute(frame);
+        Object result = execute(frame);
+        if (CompilerDirectives.inInterpreter() && result == null) {
+            throw RInternalError.shouldNotReachHere("null result in " + this.getClass().getSimpleName());
+        }
+        return result;
     }
 
     /*

mx.fastr/suite.py

@@ -28,7 +28,7 @@ suite = {
     "suites" : [
             {
                "name" : "truffle",
-               "version" : "0a9e88293bf90fe485999b26b0969e71509a64aa",
+               "version" : "c02973969fb144b533ae0e53187674cb04c2aacc",
                "urls" : [
                     {"url" : "https://github.com/graalvm/truffle", "kind" : "git"},
                     {"url" : "https://curio.ssw.jku.at/nexus/content/repositories/snapshots", "kind" : "binary"},