update copyrights

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

 /*
- * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2016, 2018, 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

com.oracle.truffle.r.test/src/com/oracle/truffle/r/test/builtins/TestBuiltin_deriv.java

 /*
- * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2017,2018, 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

com.oracle.truffle.r.test/src/com/oracle/truffle/r/test/builtins/TestBuiltin_function.java

@@ -30,7 +30,7 @@ import com.oracle.truffle.r.test.TestBase;
 public class TestBuiltin_function extends TestBase {
     @Test
     public void testFunctionFunction() {
-        assertEval("eval(call('function', 1, expression(x + 1)[[1]]))");
+        assertEval(Output.MayIgnoreErrorContext, "eval(call('function', 1, expression(x + 1)[[1]]))");
         assertEval("eval(call('function', as.pairlist(list(x=4)), expression(x + 1)[[1]]))");
         assertEval("do.call('function', list(as.pairlist(list(x=4)), expression(x + 1)[[1]]))");
     }

com.oracle.truffle.r.test/src/com/oracle/truffle/r/test/builtins/TestBuiltin_identical.java

@@ -4,7 +4,7 @@
  * http://www.gnu.org/licenses/gpl-2.0.html
  *
  * Copyright (c) 2012-2014, Purdue University
- * Copyright (c) 2013, 2017, Oracle and/or its affiliates
+ * Copyright (c) 2013, 2018, Oracle and/or its affiliates
  *
  * All rights reserved.
  */