bpo-39573: Use Py_TYPE() macro in Python and Include directories (GH-18391)

Replace direct access to PyObject.ob_type with Py_TYPE().

Python/compile.c

@@ -3988,7 +3988,7 @@ infer_type(expr_ty e)
     case FormattedValue_kind:
         return &PyUnicode_Type;
     case Constant_kind:
-        return e->v.Constant.value->ob_type;
+        return Py_TYPE(e->v.Constant.value);
     default:
         return NULL;
     }