Guards specs which do not work on Windows due to sizeof(int) == sizeof(long)
Guards specs which do not work on Windows due to sizeof(int) == sizeof(long)

* See https://ci.appveyor.com/project/eregon/spec-x948i/builds/21753809/job/ed8e8k97m8syp4r7

eregon/rubyspec,eregon/rubyspec,ruby/rubyspec,ruby/spec,ruby/spec,nobu/rubyspec,nobu/rubyspec,eregon/rubyspec,nobu/rubyspec,ruby/spec,ruby/rubyspec