delete more redundant code when encountering constant bool conditions inside of generator expressions
delete more redundant code when encountering constant bool conditions inside of generator expressions

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