Make TruffleRuby as declaring a couple of cext encoding functions
Make TruffleRuby as declaring a couple of cext encoding functions

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