Thread.status can return nil
Thread.status can return nil

Ignore that for threads terminated with an exception. Ignore those too
(they are definitely not alive).

icebreaker/byebug,miamiruby/byebug,guilherme/byebug,scalp42/byebug,os97673/byebug,deivid-rodriguez/byebug,yui-knk/byebug,saisai/byebug,icebreaker/byebug,miamiruby/byebug,guilherme/byebug,yui-knk/byebug,k0kubun/byebug,ozydingo/byebug,guilherme/byebug,os97673/byebug,ozydingo/byebug,yui-knk/byebug,k0kubun/byebug,deivid-rodriguez/byebug,webdev1001/byebug,saisai/byebug,k0kubun/byebug,deivid-rodriguez/byebug,scalp42/byebug,webdev1001/byebug