fix 'with nogil' blocks inside of generators in C++ mode
fix 'with nogil' blocks inside of generators in C++ mode

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