revert to PyLong_AsLongAndOverflow for easier overflow handling

Objects/bytesobject.c

@@ -2828,7 +2828,8 @@
             bytes = Py_None;
 	    goto done;
         }
-        int value = PyLong_AsInt(items[i]);
+        int overflow;
+        long value = PyLong_AsLongAndOverflow(items[i], &overflow);
         if (value == -1 && PyErr_Occurred()) {
             goto error;
         }
@@ -2844,9 +2845,9 @@
   error:
     Py_DECREF(bytes);
     bytes = NULL;
   done:
     /* both success and failure need to end the critical section */
     Py_END_CRITICAL_SECTION_SEQUENCE_FAST();
     return bytes;
 }