add two missing functions that are used in more recent numpy

Author: timfel

graalpython/com.oracle.graal.python.cext/src/dictobject.c

@@ -57,6 +57,10 @@ PyObject* PyDict_GetItem(PyObject* d, PyObject* k) {
     return UPCALL_CEXT_O(_jls_PyDict_GetItem, native_to_java(d), native_to_java(k));
 }
 
+PyObject* _PyDict_GetItemId(PyObject* d, _Py_Identifier* id) {
+    return PyDict_GetItemString(d, id->string);
+}
+
 UPCALL_ID(PyDict_DelItem);
 int PyDict_DelItem(PyObject *d, PyObject *k) {
     return UPCALL_CEXT_I(_jls_PyDict_DelItem, native_to_java(d), native_to_java(k));

graalpython/com.oracle.graal.python.cext/src/object.c

@@ -388,6 +388,10 @@ PyObject* _PyObject_GC_New(PyTypeObject *tp) {
     return _PyObject_New(tp);
 }
 
+PyVarObject* _PyObject_GC_NewVar(PyTypeObject *tp, Py_ssize_t nitems) {
+    return _PyObject_NewVar(tp, nitems);
+}
+
 PyVarObject *
 _PyObject_NewVar(PyTypeObject *tp, Py_ssize_t nitems)
 {