Fix compiler warnings regarding loss of data (GH-23983)
diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index ad32a06..64fd408 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -2302,7 +2302,7 @@ _PyUnicode_FromId(_Py_Identifier *id)
PyInterpreterState *interp = _PyInterpreterState_GET();
struct _Py_unicode_ids *ids = &interp->unicode.ids;
- int index = _Py_atomic_size_get(&id->index);
+ Py_ssize_t index = _Py_atomic_size_get(&id->index);
if (index < 0) {
struct _Py_unicode_runtime_ids *rt_ids = &interp->runtime->unicode_ids;