[swig] Don't fill output variable during integer typecheck.
[swig] Don't fill output variable during integer typecheck.

fperignon/siconos,fperignon/siconos,siconos/siconos,radarsat1/siconos,fperignon/siconos,radarsat1/siconos,siconos/siconos,siconos/siconos,siconos/siconos,bremond/siconos,radarsat1/siconos,bremond/siconos,radarsat1/siconos,bremond/siconos,bremond/siconos,bremond/siconos,fperignon/siconos,fperignon/siconos,radarsat1/siconos