TupleBuiltins missing __getnewargs__

Author: cosminbasca

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/tuple/TupleBuiltins.java

@@ -30,6 +30,7 @@
 import static com.oracle.graal.python.nodes.SpecialMethodNames.__CONTAINS__;
 import static com.oracle.graal.python.nodes.SpecialMethodNames.__EQ__;
 import static com.oracle.graal.python.nodes.SpecialMethodNames.__GETITEM__;
+import static com.oracle.graal.python.nodes.SpecialMethodNames.__GETNEWARGS__;
 import static com.oracle.graal.python.nodes.SpecialMethodNames.__GE__;
 import static com.oracle.graal.python.nodes.SpecialMethodNames.__GT__;
 import static com.oracle.graal.python.nodes.SpecialMethodNames.__HASH__;
@@ -64,6 +65,7 @@
 import com.oracle.graal.python.builtins.objects.object.PythonObjectLibrary;
 import com.oracle.graal.python.builtins.objects.slice.PSlice;
 import com.oracle.graal.python.builtins.objects.str.PString;
+import com.oracle.graal.python.builtins.objects.str.StringNodes;
 import com.oracle.graal.python.builtins.objects.tuple.TupleBuiltinsClinicProviders.IndexNodeClinicProviderGen;
 import com.oracle.graal.python.nodes.ErrorMessages;
 import com.oracle.graal.python.nodes.PGuards;
@@ -506,4 +508,13 @@ Object genericHash(@SuppressWarnings("unused") Object self) {
             return PNotImplemented.NOT_IMPLEMENTED;
         }
     }
+
+    @Builtin(name = __GETNEWARGS__, minNumOfPositionalArgs = 1)
+    @GenerateNodeFactory
+    public abstract static class GetNewargsNode extends PythonUnaryBuiltinNode {
+        @Specialization
+        PTuple doIt(PTuple self) {
+            return factory().createTuple(self.getSequenceStorage());
+        }
+    }
 }