fix constant_result of SliceNode
fix constant_result of SliceNode

mcanthony/cython,JelleZijlstra/cython,achernet/cython,encukou/cython,hpfem/cython,mcanthony/cython,dahebolangkuan/cython,JelleZijlstra/cython,da-woods/cython,fperez/cython,fabianrost84/cython,fperez/cython,fperez/cython,encukou/cython,fabianrost84/cython,ABcDexter/cython,slonik-az/cython,fabianrost84/cython,fperez/cython,acrispin/cython,larsmans/cython,hpfem/cython,mcanthony/cython,madjar/cython,marscher/cython,JelleZijlstra/cython,encukou/cython,hhsprings/cython,encukou/cython,mrGeen/cython,roxyboy/cython,da-woods/cython,achernet/cython,andreasvc/cython,slonik-az/cython,roxyboy/cython,mcanthony/cython,hickford/cython,achernet/cython,madjar/cython,hhsprings/cython,slonik-az/cython,ABcDexter/cython,rguillebert/CythonCTypesBackend,fabianrost84/cython,scoder/cython,da-woods/cython,larsmans/cython,achernet/cython,rguillebert/CythonCTypesBackend,achernet/cython,andreasvc/cython,cython/cython,larsmans/cython,mrGeen/cython,da-woods/cython,larsmans/cython,rguillebert/CythonCTypesBackend,c-blake/cython,hpfem/cython,acrispin/cython,c-blake/cython,cython/cython,madjar/cython,mrGeen/cython,ChristopherHogan/cython,hickford/cython,hickford/cython,andreasvc/cython,ABcDexter/cython,acrispin/cython,madjar/cython,mrGeen/cython,c-blake/cython,hhsprings/cython,dahebolangkuan/cython,andreasvc/cython,roxyboy/cython,dahebolangkuan/cython,marscher/cython,hpfem/cython,fperez/cython,marscher/cython,acrispin/cython,scoder/cython,JelleZijlstra/cython,slonik-az/cython,andreasvc/cython,marscher/cython,rguillebert/CythonCTypesBackend,scoder/cython,hickford/cython,hickford/cython,encukou/cython,fabianrost84/cython,ChristopherHogan/cython,larsmans/cython,ChristopherHogan/cython,cython/cython,cython/cython,ABcDexter/cython,roxyboy/cython,JelleZijlstra/cython,mrGeen/cython,dahebolangkuan/cython,slonik-az/cython,roxyboy/cython,c-blake/cython,acrispin/cython,marscher/cython,madjar/cython,ABcDexter/cython,hpfem/cython,hhsprings/cython,hhsprings/cython,c-blake/cython,dahebolangkuan/cython,mcanthony/cython,scoder/cython