revert comprehensions to their previous (var-leaking) behaviour
revert comprehensions to their previous (var-leaking) behaviour

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