Add bit32 polyfill globally

data/core/start.lua

@@ -32,3 +32,5 @@ end }
 
 table.pack = table.pack or pack or function(...) return {...} end
 table.unpack = table.unpack or unpack
+
+bit32 = bit32 or require "core.bit"

data/core/tokenizer.lua

@@ -1,6 +1,5 @@
 local syntax = require "core.syntax"
 local common = require "core.common"
-local bit32 = require "core.bit"
 
 local tokenizer = {}