rbx error

gistfile1.txt

This change:
https://github.com/rubinius/rubinius/commit/15f8bdf440236481c5fcb953234b1e173edf9e2e

Breaks this code:
https://gist.github.com/1065789

Backtrace:
  Kernel(NilClass)#each (method_missing) at kernel/delta/kernel.rb:81
  Rubinius::AST::Container(Rubinius::AST::Script)#container_bytecode at \
          /Users/justinko/.rvm/rubies/rbx-head/runtime/18/compiler/ast/definitions.rbc:944
       Rubinius::AST::Script#bytecode at /Users/justinko/.rvm/rubies/rbx-head
                                         /runtime/18/compiler/ast
                                         /definitions.rbc:1062
    Rubinius::Compiler::Generator#run at /Users/justinko/.rvm/rubies/rbx-head
                                         /runtime/18/compiler/stages.rbc:153
               Rubinius::Compiler#run at /Users/justinko/.rvm/rubies/rbx-head
                                         /runtime/18/compiler/compiler.rbc:372
                     Object#__script__ at test.rb:76
      Rubinius::CodeLoader#load_script at kernel/delta/codeloader.rb:67
      Rubinius::CodeLoader.load_script at kernel/delta/codeloader.rb:109
               Rubinius::Loader#script at kernel/loader.rb:630
                 Rubinius::Loader#main at kernel/loader.rb:834