bpo-40268: Include explicitly pycore_interp.h (GH-19505)
pycore_pystate.h no longer includes pycore_interp.h:
it's now included explicitly in files accessing PyInterpreterState.
diff --git a/Objects/moduleobject.c b/Objects/moduleobject.c
index 30adc92..acb920a 100644
--- a/Objects/moduleobject.c
+++ b/Objects/moduleobject.c
@@ -2,6 +2,7 @@
/* Module object implementation */
#include "Python.h"
+#include "pycore_interp.h" // PyInterpreterState.importlib
#include "pycore_pystate.h"
#include "structmember.h"