vm.c (vm_backtrace_each): now takes an init function to distinguish an empty stack from out of stack. [ruby-dev:41366]
vm_eval.c (print_backtrace, rb_thread_backtrace): ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_2@27926 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
vm.c (vm_backtrace_each): now takes an init function to distinguish
an empty stack from out of stack. [ruby-dev:41366]
vm_eval.c (print_backtrace, rb_thread_backtrace): ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_2@27926 b2dd03c8-39d4-4d8f-98ff-823fe69b080e