modelize: always check visibility of return types

Signed-off-by: Jean Privat <jean@pryen.org>

diff --git a/src/modelize/modelize_property.nit b/src/modelize/modelize_property.nit
index cd50d4a..afd299f 100644 (file)
--- a/src/modelize/modelize_property.nit
+++ b/src/modelize/modelize_property.nit
@@ -1060,7 +1060,7 @@ redef class AMethPropdef
                        end
                end
 
-               if mysignature.arity > 0 then
+               if nsig != null then
                        # Check parameters visibility
                        for i in [0..mysignature.arity[ do
                                var nt = nsig.n_params[i].n_type