typo
add __ejs to globals and runtime.coffee
add braindead 'os' node module shim
import these properly
fix undeclared ref
fix compile error
add --warn-on-undeclared
drop jscfa2 for now
spread3 is xfail, not ignored
add Array.prototype[@@iterator]
desugar for-of loops to @@iterator + .next()/.value usage.  add another test and mark them as working