fix array length creation

internal/array.cm

@@ -16,7 +16,7 @@ function array(arg, arg2, arg3, arg4) {
     var result = []
     
     if (arg2 == null) {
-      for (var i = 0; i < len; i++) result[i] = null
+      result.length = 100
     } else if (typeof arg2 == 'function') {
       var arity = arg2.length
       for (var i = 0; i < len; i++) {