Clojurians Log v2

fyi, I've just been trying clojurescript master and I'm getting this warning from helix:

Extending an existing JavaScript type - use a different symbol name instead of js/Symbol e.g symbol

   7              ["react" :as react])
   8    (:require-macros [helix.core]))
   9  
  10  
  11  (when (exists? js/Symbol)
  12    (extend-protocol IPrintWithWriter
        ^---
  13      js/Symbol
  14      (-pr-writer [sym writer _]
  15        (-write writer (str "\"" (.toString sym) "\"")))))
  16  
  17