fix analysis of entry to be a weakref (typo introduced in d96dfd)
fix analysis of entry to be a weakref (typo introduced in d96dfd)

Originally reported in Debian http://bugs.debian.org/cgi-bin/bugreport.cgi\?bug\=692313
Lead to crash with python-dbg:

  python-dbg: ../Modules/gcmodule.c:366: visit_decref: Assertion 'gc->gc.gc_refs != 0' failed

--HG--
extra : transplant_source : D%E7%E2%8D%C4i%B7%08%F4%83%08sQ%84%27%3E%F3%17%AB%24

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