Avoid to-address conversion for 'ob_refcnt'.

Author: fangerer

graalpython/com.oracle.graal.python.cext/src/capi.h

@@ -185,14 +185,12 @@ inline void* native_to_java(PyObject* obj) {
 
 __attribute__((always_inline))
 inline void* native_type_to_java(PyTypeObject* type) {
-	PyObject* obj = (PyObject*)type;
-	void* refcnt = obj->ob_refcnt;
-	if (!truffle_cannot_be_handle(refcnt)) {
-		return resolve_handle(cache, refcnt);
-	} else if (IS_POINTER(refcnt)) {
-		return refcnt;
+	if (IS_POINTER(((PyObject*)type)->ob_refcnt)) {
+		return (void*)((PyObject*)type)->ob_refcnt;
+	} else if (!truffle_cannot_be_handle(((PyObject*)type)->ob_refcnt)) {
+		return resolve_handle(cache, ((PyObject*)type)->ob_refcnt);
 	}
-	return obj;
+	return (void*)type;
 }
 
 extern void* to_java(PyObject* obj);