Dirty fix for Symbol#to_js_proc, we need to find a better way for this
Dirty fix for Symbol#to_js_proc, we need to find a better way for this

xxuejie/mruby-js,xxuejie/mruby-js,xxuejie/mruby-js,sadasant/mruby-js,sadasant/mruby-js,sadasant/mruby-js