add a branch hint in helper function

--HG--
extra : transplant_source : %D6h%3C%E4%02%B9%D5%D1%B0%95%5Bly.%18%B3%D20%A7%EC

Cython/Utility/ObjectHandling.c

@@ -994,7 +994,7 @@ static CYTHON_INLINE PyObject *__Pyx_GetModuleGlobalName(PyObject *name) {
     PyObject *result;
 #if CYTHON_COMPILING_IN_CPYTHON
     result = PyDict_GetItem($moddict_cname, name);
-    if (result) {
+    if (likely(result)) {
         Py_INCREF(result);
     } else {
 #else