Restore cwd if debugger setUp() fails (to avoid breaking later tests).
Restore cwd if debugger setUp() fails (to avoid breaking later tests).

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