Update Truffle import

Author: steve-s

com.oracle.truffle.r.nodes.builtin/src/com/oracle/truffle/r/nodes/builtin/base/Lengths.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2016, 2020, 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

mx.fastr/suite.py

@@ -9,7 +9,7 @@
                "subdir" : True,
                # The version must be the same as the version of Sulong
                # TRUFFLE REVISION (note: this is a marker for script that can update this)
-               "version" : "c28201d846702acff38cae0910efc5a4069ea4e0",
+               "version" : "db6bcb241f4c0d64f03febe9dda24631db1b4e74",
                "urls" : [
                     {"url" : "https://github.com/graalvm/graal", "kind" : "git"},
                     {"url" : "https://curio.ssw.jku.at/nexus/content/repositories/snapshots", "kind" : "binary"},
@@ -20,7 +20,7 @@
                "subdir" : True,
                # The version must be the same as the version of Truffle
                # TRUFFLE REVISION (note: this is a marker for script that can update this)
-               "version" : "c28201d846702acff38cae0910efc5a4069ea4e0",
+               "version" : "db6bcb241f4c0d64f03febe9dda24631db1b4e74",
                "urls" : [
                     {"url" : "https://github.com/graalvm/graal", "kind" : "git"},
                     {"url" : "https://curio.ssw.jku.at/nexus/content/repositories/snapshots", "kind" : "binary"},