Support native member 'tp_new'.

Author: fangerer

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/cext/NativeMemberNames.java

@@ -58,6 +58,7 @@ public abstract class NativeMemberNames {
     public static final String TP_SETATTR = "tp_setattr";
     public static final String TP_GETATTRO = "tp_getattro";
     public static final String TP_SETATTRO = "tp_setattro";
+    public static final String TP_NEW = "tp_new";
     public static final String _BASE = "_base";
     public static final String OB_ITEM = "ob_item";
     public static final String MA_USED = "ma_used";
@@ -96,6 +97,7 @@ public static boolean isValid(String key) {
             case TP_SETATTR:
             case TP_GETATTRO:
             case TP_SETATTRO:
+            case TP_NEW:
             case _BASE:
             case OB_ITEM:
             case MA_USED:

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/cext/PythonObjectNativeWrapperMR.java

@@ -212,6 +212,12 @@ Object doTpAsBuffer(PythonClass object, @SuppressWarnings("unused") String key)
             return getToSulongNode().execute(PNone.NO_VALUE);
         }
 
+        @Specialization(guards = "eq(TP_NEW, key)")
+        Object doTpNew(PythonClass object, @SuppressWarnings("unused") String key,
+                        @Cached("create()") GetAttributeNode getAttrNode) {
+            return getToSulongNode().execute(getAttrNode.execute(object, SpecialAttributeNames.__NEW__));
+        }
+
         @Specialization(guards = "eq(TP_HASH, key)")
         Object doTpHash(PythonClass object, @SuppressWarnings("unused") String key,
                         @Cached("create()") GetAttributeNode getHashNode) {

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/nodes/SpecialAttributeNames.java

@@ -65,6 +65,7 @@ public abstract class SpecialAttributeNames {
     public static final String __CACHED__ = "__cached__";
     public static final String __TRACEBACK__ = "__traceback__";
     public static final String __BASICSIZE__ = "__basicsize__";
+    public static final String __NEW__ = "__new__";
 
     /* hidden keys */
     public static final HiddenKey __GET_BUFFER__ = new HiddenKey("__get_buffer__");